117251115 has 16 divisors (see below), whose sum is σ = 187850016. Its totient is φ = 62451200.

The previous prime is 117251111. The next prime is 117251117. The reversal of 117251115 is 511152711.

It is not a de Polignac number, because 117251115 - 2² = 117251111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117251111) 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, 7555 + ... + 17075.

It is an arithmetic number, because the mean of its divisors is an integer number (11740626).

Almost surely, 2^117251115 is an apocalyptic number.

117251115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117251115 is a deficient number, since it is larger than the sum of its proper divisors (70598901).

117251115 is an equidigital number, since it uses as much as digits as its factorization.

117251115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10350.

The product of its digits is 350, while the sum is 24.

The square root of 117251115 is about 10828.2553996477. The cubic root of 117251115 is about 489.4469882143.

The spelling of 117251115 in words is "one hundred seventeen million, two hundred fifty-one thousand, one hundred fifteen".