126205912 has 32 divisors (see below), whose sum is σ = 279770400. Its totient is φ = 52222464.

The previous prime is 126205901. The next prime is 126205921. The reversal of 126205912 is 219502621.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37233 + ... + 40480.

It is an arithmetic number, because the mean of its divisors is an integer number (8742825).

Almost surely, 2^126205912 is an apocalyptic number.

It is an amenable number.

126205912 is an abundant number, since it is smaller than the sum of its proper divisors (153564488).

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

126205912 is a wasteful number, since it uses less digits than its factorization.

126205912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77755 (or 77751 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 126205912 is about 11234.1404655630. The cubic root of 126205912 is about 501.6027396286.

The spelling of 126205912 in words is "one hundred twenty-six million, two hundred five thousand, nine hundred twelve".