126637212 has 24 divisors (see below), whose sum is σ = 318216976. Its totient is φ = 38965248.

The previous prime is 126637177. The next prime is 126637243. The reversal of 126637212 is 212736621.

It is a self number, because there is not a number n which added to its sum of digits gives 126637212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405733 + ... + 406044.

Almost surely, 2^126637212 is an apocalyptic number.

126637212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126637212 is an abundant number, since it is smaller than the sum of its proper divisors (191579764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126637212 is a wasteful number, since it uses less digits than its factorization.

126637212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811797 (or 811795 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 126637212 is about 11253.3200434361. The cubic root of 126637212 is about 502.1734875469.

The spelling of 126637212 in words is "one hundred twenty-six million, six hundred thirty-seven thousand, two hundred twelve".