125512912 has 30 divisors (see below), whose sum is σ = 282886098. Its totient is φ = 53790912.

The previous prime is 125512903. The next prime is 125512939. The reversal of 125512912 is 219215521.

It can be written as a sum of positive squares in only one way, i.e., 69622336 + 55890576 = 8344^2 + 7476^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79263 + ... + 80830.

Almost surely, 2^125512912 is an apocalyptic number.

It is an amenable number.

125512912 is an abundant number, since it is smaller than the sum of its proper divisors (157373186).

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

125512912 is a wasteful number, since it uses less digits than its factorization.

125512912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160115 (or 160102 counting only the distinct ones).

The product of its digits is 1800, while the sum is 28.

The square root of 125512912 is about 11203.2545271452. The cubic root of 125512912 is about 500.6829494022.

The spelling of 125512912 in words is "one hundred twenty-five million, five hundred twelve thousand, nine hundred twelve".