117331215 has 16 divisors (see below), whose sum is σ = 187996128. Its totient is φ = 62487936.

The previous prime is 117331163. The next prime is 117331231. The reversal of 117331215 is 512133711.

It is a happy number.

It is not a de Polignac number, because 117331215 - 2⁷ = 117331087 is a prime.

It is a super-2 number, since 2×117331215² = 27533228026752450, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 6189 + ... + 16521.

It is an arithmetic number, because the mean of its divisors is an integer number (11749758).

Almost surely, 2^117331215 is an apocalyptic number.

117331215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117331215 is a deficient number, since it is larger than the sum of its proper divisors (70664913).

117331215 is a wasteful number, since it uses less digits than its factorization.

117331215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11098.

The product of its digits is 630, while the sum is 24.

The square root of 117331215 is about 10831.9534249368. The cubic root of 117331215 is about 489.5584179424.

Adding to 117331215 its reverse (512133711), we get a palindrome (629464926).

The spelling of 117331215 in words is "one hundred seventeen million, three hundred thirty-one thousand, two hundred fifteen".