117306915 has 16 divisors (see below), whose sum is σ = 204754176. Its totient is φ = 56876000.

The previous prime is 117306913. The next prime is 117306947. The reversal of 117306915 is 519603711.

It is a happy number.

It is not a de Polignac number, because 117306915 - 2¹ = 117306913 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (117306911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355311 + ... + 355640.

It is an arithmetic number, because the mean of its divisors is an integer number (12797136).

Almost surely, 2^117306915 is an apocalyptic number.

117306915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117306915 is a deficient number, since it is larger than the sum of its proper divisors (87447261).

117306915 is a wasteful number, since it uses less digits than its factorization.

117306915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710970.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 117306915 is about 10830.8316855170. The cubic root of 117306915 is about 489.5246187784.

The spelling of 117306915 in words is "one hundred seventeen million, three hundred six thousand, nine hundred fifteen".