125379664 has 10 divisors (see below), whose sum is σ = 242923130. Its totient is φ = 62689824.

The previous prime is 125379659. The next prime is 125379677. The reversal of 125379664 is 466973521.

It can be written as a sum of positive squares in only one way, i.e., 106090000 + 19289664 = 10300^2 + 4392^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125379664.

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, 3918099 + ... + 3918130.

It is an arithmetic number, because the mean of its divisors is an integer number (24292313).

Almost surely, 2^125379664 is an apocalyptic number.

It is an amenable number.

125379664 is a deficient number, since it is larger than the sum of its proper divisors (117543466).

125379664 is an equidigital number, since it uses as much as digits as its factorization.

125379664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836237 (or 7836231 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 125379664 is about 11197.3061045950. The cubic root of 125379664 is about 500.5057070151.

It can be divided in two parts, 12537 and 9664, that added together give a square (22201 = 149²).

The spelling of 125379664 in words is "one hundred twenty-five million, three hundred seventy-nine thousand, six hundred sixty-four".