125931646 has 16 divisors (see below), whose sum is σ = 194573376. Its totient is φ = 61083936.

The previous prime is 125931613. The next prime is 125931653. The reversal of 125931646 is 646139521.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 7 ways as a sum of consecutive naturals, for example, 24840 + ... + 29476.

It is an arithmetic number, because the mean of its divisors is an integer number (12160836).

Almost surely, 2^125931646 is an apocalyptic number.

125931646 is a deficient number, since it is larger than the sum of its proper divisors (68641730).

125931646 is a wasteful number, since it uses less digits than its factorization.

125931646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5043.

The product of its digits is 38880, while the sum is 37.

The square root of 125931646 is about 11221.9270181195. The cubic root of 125931646 is about 501.2391212868.

The spelling of 125931646 in words is "one hundred twenty-five million, nine hundred thirty-one thousand, six hundred forty-six".