156739956 has 12 divisors (see below), whose sum is σ = 365726592. Its totient is φ = 52246648.

The previous prime is 156739909. The next prime is 156739997. The reversal of 156739956 is 659937651.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 156739899 and 156739908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6530820 + ... + 6530843.

It is an arithmetic number, because the mean of its divisors is an integer number (30477216).

Almost surely, 2^156739956 is an apocalyptic number.

It is an amenable number.

156739956 is an abundant number, since it is smaller than the sum of its proper divisors (208986636).

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

156739956 is a wasteful number, since it uses less digits than its factorization.

156739956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13061670 (or 13061668 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 51.

The square root of 156739956 is about 12519.5829004005. The cubic root of 156739956 is about 539.1710601288.

The spelling of 156739956 in words is "one hundred fifty-six million, seven hundred thirty-nine thousand, nine hundred fifty-six".