125688928 has 24 divisors (see below), whose sum is σ = 258210288. Its totient is φ = 60111744.

The previous prime is 125688919. The next prime is 125688931. The reversal of 125688928 is 829886521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84651 + ... + 86122.

It is an arithmetic number, because the mean of its divisors is an integer number (10758762).

Almost surely, 2^125688928 is an apocalyptic number.

It is an amenable number.

125688928 is an abundant number, since it is smaller than the sum of its proper divisors (132521360).

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

125688928 is a wasteful number, since it uses less digits than its factorization.

125688928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170806 (or 170798 counting only the distinct ones).

The product of its digits is 552960, while the sum is 49.

The square root of 125688928 is about 11211.1073494102. The cubic root of 125688928 is about 500.9168882707.

The spelling of 125688928 in words is "one hundred twenty-five million, six hundred eighty-eight thousand, nine hundred twenty-eight".