He’s not out of diapers yet, but a Calgary toddler has become the youngest person in Canada to join the ranks of the international high-IQ society, Mensa.

Meet Anthony Popa Urria. At two years and nine months, Anthony has a staggeringly high IQ score of 154, just a few points shy of the estimated IQs of Albert Einstein and Stephen Hawking.

While most of his peers are singing Itsy Bitsy Spider and drawing crayon scribbles, this bright toddler spends his time reciting the alphabet backward and forward, counting to 1,000, and listing the planets in the solar system, days in a week, months in a year and the seasons.

He also speaks three languages (English, Spanish and some Romanian), can read full sentences in books he has never seen before, can write his own name and many other words, and can solve complex 70-piece puzzles, among his vast skills.

On a Friday afternoon in the Popa Urria household, the rambunctious youngster seems like any other two-year-old.

Sitting on his blue, yellow and red tricycle, Anthony helps himself to a spoonful of chocolate ice cream.

“Yummy!” he exclaims with a smile after the first bite. But as he peers over a gigantic illustrated atlas more than twice his size, points to and identifies the capital city of Madagascar (it’s Antananarivo, in case you didn’t know), it’s clear the youngster is no ordinary child.

His grandmother Felicia, who looks after Anthony during the day while his parents are at work, said she noticed early on that baby Anthony was an exceptionally quick learner.

“He was very alert since he was about four months old. He was curious, looking around,” said Felicia.

At the age of six months, Felicia realized he could identify letters of the alphabet.

“He wasn’t even speaking yet, but my mom would have three flash cards up and she would say, ‘Pick the letter C,’ and he would point to it,” explained Anthony’s mother Laura, who holds four degrees, including a master of economics.

By 10 months, he was sounding out the alphabet phonetically. At first, Laura said she was skeptical. She wondered if her son was simply memorizing the letters without comprehending them.

In February, Laura took him to London, England, to have his IQ tested.

Anthony met with British psychologist Joan Freeman, known for her research on gifted people.

“Naming alone is a first step in learning, being able to describe the function and selection of items are more advanced skills, which Anthony did well above his age level,” Freeman wrote in her report.

When Vicki Herd, a national board member for Mensa Canada, first saw Anthony listed as a new member of the society, she was convinced there had been a typo.

“We thought, ‘Hey, they must have got the birthdate wrong,'” she said with a laugh.

Across Canada, there are only seven other members of Mensa aged 10 or younger.