125643800 has 24 divisors (see below), whose sum is σ = 292122300. Its totient is φ = 50257440.

The previous prime is 125643799. The next prime is 125643841. The reversal of 125643800 is 8346521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313910 + ... + 314309.

Almost surely, 2^125643800 is an apocalyptic number.

125643800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125643800 is an abundant number, since it is smaller than the sum of its proper divisors (166478500).

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

125643800 is a wasteful number, since it uses less digits than its factorization.

125643800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628235 (or 628226 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 125643800 is about 11209.0945218604. The cubic root of 125643800 is about 500.8569305012.

The spelling of 125643800 in words is "one hundred twenty-five million, six hundred forty-three thousand, eight hundred".