125881886 has 32 divisors (see below), whose sum is σ = 214437888. Its totient is φ = 55012320.

The previous prime is 125881879. The next prime is 125881891. The reversal of 125881886 is 688188521.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 125881886.

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, 36221 + ... + 39543.

It is an arithmetic number, because the mean of its divisors is an integer number (6701184).

Almost surely, 2^125881886 is an apocalyptic number.

125881886 is a deficient number, since it is larger than the sum of its proper divisors (88556002).

125881886 is a wasteful number, since it uses less digits than its factorization.

125881886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416.

The product of its digits is 245760, while the sum is 47.

The square root of 125881886 is about 11219.7097110398. The cubic root of 125881886 is about 501.1730935506.

The spelling of 125881886 in words is "one hundred twenty-five million, eight hundred eighty-one thousand, eight hundred eighty-six".