125640600 has 48 divisors (see below), whose sum is σ = 389487720. Its totient is φ = 33504000.

The previous prime is 125640589. The next prime is 125640617. The reversal of 125640600 is 6046521.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104101 + ... + 105300.

Almost surely, 2^125640600 is an apocalyptic number.

125640600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125640600 is an abundant number, since it is smaller than the sum of its proper divisors (263847120).

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

125640600 is a wasteful number, since it uses less digits than its factorization.

125640600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209420 (or 209411 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 125640600 is about 11208.9517797161. The cubic root of 125640600 is about 500.8526783859.

The spelling of 125640600 in words is "one hundred twenty-five million, six hundred forty thousand, six hundred".