117156207 has 12 divisors (see below), whose sum is σ = 181711896. Its totient is φ = 66946320.

The previous prime is 117156203. The next prime is 117156239. The reversal of 117156207 is 702651711.

It is not a de Polignac number, because 117156207 - 2² = 117156203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117156203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398344 + ... + 398637.

It is an arithmetic number, because the mean of its divisors is an integer number (15142658).

Almost surely, 2^117156207 is an apocalyptic number.

117156207 is a deficient number, since it is larger than the sum of its proper divisors (64555689).

117156207 is an equidigital number, since it uses as much as digits as its factorization.

117156207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796998 (or 796991 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 30.

The square root of 117156207 is about 10823.8720890447. The cubic root of 117156207 is about 489.3148928850.

The spelling of 117156207 in words is "one hundred seventeen million, one hundred fifty-six thousand, two hundred seven".