125379864 has 24 divisors (see below), whose sum is σ = 339570660. Its totient is φ = 41793264.

The previous prime is 125379853. The next prime is 125379869. The reversal of 125379864 is 468973521.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×125379864² = 31440220593316992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125379869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 870622 + ... + 870765.

Almost surely, 2^125379864 is an apocalyptic number.

It is an amenable number.

125379864 is an abundant number, since it is smaller than the sum of its proper divisors (214190796).

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

125379864 is a wasteful number, since it uses less digits than its factorization.

125379864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741399 (or 1741392 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 125379864 is about 11197.3150353109. The cubic root of 125379864 is about 500.5059731430.

The spelling of 125379864 in words is "one hundred twenty-five million, three hundred seventy-nine thousand, eight hundred sixty-four".