125798656 has 27 divisors (see below), whose sum is σ = 251464633. Its totient is φ = 62809600.

The previous prime is 125798641. The next prime is 125798669. The reversal of 125798656 is 656897521.

The square root of 125798656 is 11216.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 108493056 + 17305600 = 10416^2 + 4160^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 179106 + ... + 179806.

Almost surely, 2^125798656 is an apocalyptic number.

125798656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

125798656 is the 11216-th square number.

It is an amenable number.

125798656 is a deficient number, since it is larger than the sum of its proper divisors (125665977).

125798656 is an frugal number, since it uses more digits than its factorization.

125798656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 703 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The cubic root of 125798656 is about 501.0626147666.

Multiplying 125798656 by its sum of digits (49), we get a square (6164134144 = 78512²).

The spelling of 125798656 in words is "one hundred twenty-five million, seven hundred ninety-eight thousand, six hundred fifty-six".