That's not a property of the number 1729, that's only a property of the decimal notation for the number; an important distinction. The property is also trivial.

That's not a property of the number 1729, that's only a property of the decimal notation for the number; an important distinction. The property is also trivial. Ramanujan's property - that the number is expressible in two different ways as a sum of two cubes, and in fact the smallest number so expressible - is a property of the number. That Ramanujan had different innate abilities from the vast majority of people is about as clear as the midday sun.