125979928 has 32 divisors (see below), whose sum is σ = 255441600. Its totient is φ = 58020352.

The previous prime is 125979869. The next prime is 125979941. The reversal of 125979928 is 829979521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3463 + ... + 16246.

It is an arithmetic number, because the mean of its divisors is an integer number (7982550).

Almost surely, 2^125979928 is an apocalyptic number.

It is an amenable number.

125979928 is an abundant number, since it is smaller than the sum of its proper divisors (129461672).

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

125979928 is a wasteful number, since it uses less digits than its factorization.

125979928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19779 (or 19775 counting only the distinct ones).

The product of its digits is 816480, while the sum is 52.

The square root of 125979928 is about 11224.0780467707. The cubic root of 125979928 is about 501.3031712055.

The spelling of 125979928 in words is "one hundred twenty-five million, nine hundred seventy-nine thousand, nine hundred twenty-eight".