125023920 has 80 divisors (see below), whose sum is σ = 442947840. Its totient is φ = 28576512.

The previous prime is 125023897. The next prime is 125024059. The reversal of 125023920 is 29320521.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 35530 + ... + 38889.

It is an arithmetic number, because the mean of its divisors is an integer number (5536848).

Almost surely, 2^125023920 is an apocalyptic number.

125023920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125023920 is an abundant number, since it is smaller than the sum of its proper divisors (317923920).

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

125023920 is a wasteful number, since it uses less digits than its factorization.

125023920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74442 (or 74436 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 125023920 is about 11181.4095712482. The cubic root of 125023920 is about 500.0318912992.

The spelling of 125023920 in words is "one hundred twenty-five million, twenty-three thousand, nine hundred twenty".