172125916 has 6 divisors (see below), whose sum is σ = 301220360. Its totient is φ = 86062956.

The previous prime is 172125907. The next prime is 172125923. The reversal of 172125916 is 619521271.

172125916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21515736 + ... + 21515743.

Almost surely, 2^172125916 is an apocalyptic number.

It is an amenable number.

172125916 is a deficient number, since it is larger than the sum of its proper divisors (129094444).

172125916 is a wasteful number, since it uses less digits than its factorization.

172125916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43031483 (or 43031481 counting only the distinct ones).

The product of its digits is 7560, while the sum is 34.

The square root of 172125916 is about 13119.6766728453. The cubic root of 172125916 is about 556.2654521483.

The spelling of 172125916 in words is "one hundred seventy-two million, one hundred twenty-five thousand, nine hundred sixteen".