125163664 has 10 divisors (see below), whose sum is σ = 242504630. Its totient is φ = 62581824.

The previous prime is 125163653. The next prime is 125163667. The reversal of 125163664 is 466361521.

It can be written as a sum of positive squares in only one way, i.e., 110418064 + 14745600 = 10508^2 + 3840^2 .

It is not an unprimeable number, because it can be changed into a prime (125163667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3911349 + ... + 3911380.

It is an arithmetic number, because the mean of its divisors is an integer number (24250463).

Almost surely, 2^125163664 is an apocalyptic number.

It is an amenable number.

125163664 is a deficient number, since it is larger than the sum of its proper divisors (117340966).

125163664 is an equidigital number, since it uses as much as digits as its factorization.

125163664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822737 (or 7822731 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 125163664 is about 11187.6567698513. The cubic root of 125163664 is about 500.2181234971.

The spelling of 125163664 in words is "one hundred twenty-five million, one hundred sixty-three thousand, six hundred sixty-four".