117031155 has 16 divisors (see below), whose sum is σ = 190784160. Its totient is φ = 61238528.

The previous prime is 117031141. The next prime is 117031177. The reversal of 117031155 is 551130711.

It is a cyclic number.

It is not a de Polignac number, because 117031155 - 2⁴ = 117031139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72810 + ... + 74399.

It is an arithmetic number, because the mean of its divisors is an integer number (11924010).

Almost surely, 2^117031155 is an apocalyptic number.

117031155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117031155 is a deficient number, since it is larger than the sum of its proper divisors (73753005).

117031155 is a wasteful number, since it uses less digits than its factorization.

117031155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147270.

The product of its (nonzero) digits is 525, while the sum is 24.

The square root of 117031155 is about 10818.0938709183. The cubic root of 117031155 is about 489.1407334111.

Adding to 117031155 its reverse (551130711), we get a palindrome (668161866).

The spelling of 117031155 in words is "one hundred seventeen million, thirty-one thousand, one hundred fifty-five".