139029656 has 16 divisors (see below), whose sum is σ = 260957040. Its totient is φ = 69441120.

The previous prime is 139029589. The next prime is 139029677. The reversal of 139029656 is 656920931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740 + ... + 16691.

It is an arithmetic number, because the mean of its divisors is an integer number (16309815).

Almost surely, 2^139029656 is an apocalyptic number.

It is an amenable number.

139029656 is a deficient number, since it is larger than the sum of its proper divisors (121927384).

139029656 is a wasteful number, since it uses less digits than its factorization.

139029656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18434 (or 18430 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 139029656 is about 11791.0837500206. The cubic root of 139029656 is about 518.0469837081.

The spelling of 139029656 in words is "one hundred thirty-nine million, twenty-nine thousand, six hundred fifty-six".