125439928 has 16 divisors (see below), whose sum is σ = 236759760. Its totient is φ = 62304000.

The previous prime is 125439887. The next prime is 125439929. The reversal of 125439928 is 829934521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125439929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50713 + ... + 53128.

It is an arithmetic number, because the mean of its divisors is an integer number (14797485).

Almost surely, 2^125439928 is an apocalyptic number.

It is an amenable number.

125439928 is a deficient number, since it is larger than the sum of its proper divisors (111319832).

125439928 is a wasteful number, since it uses less digits than its factorization.

125439928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103998 (or 103994 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 125439928 is about 11199.9967857138. The cubic root of 125439928 is about 500.5858838787.

The spelling of 125439928 in words is "one hundred twenty-five million, four hundred thirty-nine thousand, nine hundred twenty-eight".