137656856 has 8 divisors (see below), whose sum is σ = 258106620. Its totient is φ = 68828424.

The previous prime is 137656829. The next prime is 137656873. The reversal of 137656856 is 658656731.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 137656856.

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 as a sum of consecutive naturals, namely, 8603546 + ... + 8603561.

Almost surely, 2^137656856 is an apocalyptic number.

It is an amenable number.

137656856 is a deficient number, since it is larger than the sum of its proper divisors (120449764).

137656856 is a wasteful number, since it uses less digits than its factorization.

137656856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17207113 (or 17207109 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The square root of 137656856 is about 11732.7258554864. The cubic root of 137656856 is about 516.3362489983.

The spelling of 137656856 in words is "one hundred thirty-seven million, six hundred fifty-six thousand, eight hundred fifty-six".