125718840 has 96 divisors (see below), whose sum is σ = 440032320. Its totient is φ = 30945024.

The previous prime is 125718811. The next prime is 125718881. The reversal of 125718840 is 48817521.

125718840 is a `hidden beast` number, since 1 + 2 + 571 + 8 + 84 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 125718795 and 125718804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8752 + ... + 18111.

It is an arithmetic number, because the mean of its divisors is an integer number (4583670).

Almost surely, 2^125718840 is an apocalyptic number.

125718840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125718840 is an abundant number, since it is smaller than the sum of its proper divisors (314313480).

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

125718840 is a wasteful number, since it uses less digits than its factorization.

125718840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26893 (or 26886 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 125718840 is about 11212.4413041942. The cubic root of 125718840 is about 500.9566219151.

The spelling of 125718840 in words is "one hundred twenty-five million, seven hundred eighteen thousand, eight hundred forty".