161136356 has 12 divisors (see below), whose sum is σ = 282097200. Its totient is φ = 80537160.

The previous prime is 161136343. The next prime is 161136389. The reversal of 161136356 is 653631161.

161136356 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 7091 + ... + 19301.

It is an arithmetic number, because the mean of its divisors is an integer number (23508100).

Almost surely, 2^161136356 is an apocalyptic number.

It is an amenable number.

161136356 is a deficient number, since it is larger than the sum of its proper divisors (120960844).

161136356 is a wasteful number, since it uses less digits than its factorization.

161136356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15514 (or 15512 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 161136356 is about 12693.9495823798. The cubic root of 161136356 is about 544.1657195879.

It can be divided in two parts, 16 and 1136356, that multiplied together give a square (18181696 = 4264²).

The spelling of 161136356 in words is "one hundred sixty-one million, one hundred thirty-six thousand, three hundred fifty-six".