125171664 has 20 divisors (see below), whose sum is σ = 323360256. Its totient is φ = 41723872.

The previous prime is 125171653. The next prime is 125171671. The reversal of 125171664 is 466171521.

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, 1303824 + ... + 1303919.

Almost surely, 2^125171664 is an apocalyptic number.

It is an amenable number.

125171664 is an abundant number, since it is smaller than the sum of its proper divisors (198188592).

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

125171664 is a wasteful number, since it uses less digits than its factorization.

125171664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607754 (or 2607748 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 125171664 is about 11188.0143010277. The cubic root of 125171664 is about 500.2287806362.

The spelling of 125171664 in words is "one hundred twenty-five million, one hundred seventy-one thousand, six hundred sixty-four".