125221624 has 16 divisors (see below), whose sum is σ = 256135320. Its totient is φ = 56918880.

The previous prime is 125221601. The next prime is 125221631. The reversal of 125221624 is 426122521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711399 + ... + 711574.

Almost surely, 2^125221624 is an apocalyptic number.

It is an amenable number.

125221624 is an abundant number, since it is smaller than the sum of its proper divisors (130913696).

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

125221624 is a wasteful number, since it uses less digits than its factorization.

125221624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422990 (or 1422986 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 125221624 is about 11190.2468248024. The cubic root of 125221624 is about 500.2953241996.

The spelling of 125221624 in words is "one hundred twenty-five million, two hundred twenty-one thousand, six hundred twenty-four".