125820972 has 48 divisors (see below), whose sum is σ = 327265120. Its totient is φ = 41803776.

The previous prime is 125820953. The next prime is 125821001. The reversal of 125820972 is 279028521.

125820972 is a `hidden beast` number, since 1 + 2 + 582 + 0 + 9 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34668 + ... + 38124.

Almost surely, 2^125820972 is an apocalyptic number.

125820972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125820972 is an abundant number, since it is smaller than the sum of its proper divisors (201444148).

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

125820972 is a wasteful number, since it uses less digits than its factorization.

125820972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807 (or 3799 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 125820972 is about 11216.9947847006. The cubic root of 125820972 is about 501.0922416125.

The spelling of 125820972 in words is "one hundred twenty-five million, eight hundred twenty thousand, nine hundred seventy-two".