117156218 has 16 divisors (see below), whose sum is σ = 178200000. Its totient is φ = 57760032.

The previous prime is 117156203. The next prime is 117156239. The reversal of 117156218 is 812651711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88163 + ... + 89481.

It is an arithmetic number, because the mean of its divisors is an integer number (11137500).

Almost surely, 2^117156218 is an apocalyptic number.

117156218 is a deficient number, since it is larger than the sum of its proper divisors (61043782).

117156218 is a wasteful number, since it uses less digits than its factorization.

117156218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909.

The product of its digits is 3360, while the sum is 32.

The square root of 117156218 is about 10823.8725971807. The cubic root of 117156218 is about 489.3149081992.

The spelling of 117156218 in words is "one hundred seventeen million, one hundred fifty-six thousand, two hundred eighteen".