117712515 has 8 divisors (see below), whose sum is σ = 188340048. Its totient is φ = 62780000.

The previous prime is 117712489. The next prime is 117712531. The reversal of 117712515 is 515217711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117712515 - 2¹⁵ = 117679747 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3923736 + ... + 3923765.

It is an arithmetic number, because the mean of its divisors is an integer number (23542506).

Almost surely, 2^117712515 is an apocalyptic number.

117712515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117712515 is a deficient number, since it is larger than the sum of its proper divisors (70627533).

117712515 is an equidigital number, since it uses as much as digits as its factorization.

117712515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847509.

The product of its digits is 2450, while the sum is 30.

The square root of 117712515 is about 10849.5398519937. The cubic root of 117712515 is about 490.0881626732.

The spelling of 117712515 in words is "one hundred seventeen million, seven hundred twelve thousand, five hundred fifteen".