125865390 has 32 divisors (see below), whose sum is σ = 345231360. Its totient is φ = 28769184.

The previous prime is 125865353. The next prime is 125865401. The reversal of 125865390 is 93568521.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 299470 + ... + 299889.

It is an arithmetic number, because the mean of its divisors is an integer number (10788480).

Almost surely, 2^125865390 is an apocalyptic number.

125865390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125865390 is an abundant number, since it is smaller than the sum of its proper divisors (219365970).

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

125865390 is a wasteful number, since it uses less digits than its factorization.

125865390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599376.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 125865390 is about 11218.9745520703. The cubic root of 125865390 is about 501.1512007727.

The spelling of 125865390 in words is "one hundred twenty-five million, eight hundred sixty-five thousand, three hundred ninety".