117156212 has 12 divisors (see below), whose sum is σ = 207137700. Its totient is φ = 57974016.

The previous prime is 117156203. The next prime is 117156239. The reversal of 117156212 is 212651711.

It can be written as a sum of positive squares in 2 ways, for example, as 16434916 + 100721296 = 4054^2 + 10036^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150587 + ... + 151362.

It is an arithmetic number, because the mean of its divisors is an integer number (17261475).

Almost surely, 2^117156212 is an apocalyptic number.

It is an amenable number.

117156212 is a deficient number, since it is larger than the sum of its proper divisors (89981488).

117156212 is a wasteful number, since it uses less digits than its factorization.

117156212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302050 (or 302048 counting only the distinct ones).

The product of its digits is 840, while the sum is 26.

The square root of 117156212 is about 10823.8723200156. The cubic root of 117156212 is about 489.3148998460.

The spelling of 117156212 in words is "one hundred seventeen million, one hundred fifty-six thousand, two hundred twelve".