125820688 has 20 divisors (see below), whose sum is σ = 278603200. Its totient is φ = 53923104.

The previous prime is 125820637. The next prime is 125820691. The reversal of 125820688 is 886028521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 125820688.

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, 561588 + ... + 561811.

It is an arithmetic number, because the mean of its divisors is an integer number (13930160).

Almost surely, 2^125820688 is an apocalyptic number.

It is an amenable number.

125820688 is an abundant number, since it is smaller than the sum of its proper divisors (152782512).

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

125820688 is a wasteful number, since it uses less digits than its factorization.

125820688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123414 (or 1123408 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 125820688 is about 11216.9821253312. The cubic root of 125820688 is about 501.0918645945.

The spelling of 125820688 in words is "one hundred twenty-five million, eight hundred twenty thousand, six hundred eighty-eight".