125616042 has 32 divisors (see below), whose sum is σ = 284420160. Its totient is φ = 41081040.

The previous prime is 125616017. The next prime is 125616097. The reversal of 125616042 is 240616521.

125616042 is a `hidden beast` number, since 1 + 2 + 5 + 616 + 0 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 125615997 and 125616015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19084 + ... + 24807.

It is an arithmetic number, because the mean of its divisors is an integer number (8888130).

Almost surely, 2^125616042 is an apocalyptic number.

125616042 is an abundant number, since it is smaller than the sum of its proper divisors (158804118).

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

125616042 is a wasteful number, since it uses less digits than its factorization.

125616042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43955 (or 43949 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 125616042 is about 11207.8562624616. The cubic root of 125616042 is about 500.8200436549.

The spelling of 125616042 in words is "one hundred twenty-five million, six hundred sixteen thousand, forty-two".