117515009 has 2 divisors, whose sum is σ = 117515010. Its totient is φ = 117515008.

The previous prime is 117514951. The next prime is 117515029. The reversal of 117515009 is 900515711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117505600 + 9409 = 10840^2 + 97^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117515009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117515029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58757504 + 58757505.

It is an arithmetic number, because the mean of its divisors is an integer number (58757505).

Almost surely, 2^117515009 is an apocalyptic number.

It is an amenable number.

117515009 is a deficient number, since it is larger than the sum of its proper divisors (1).

117515009 is an equidigital number, since it uses as much as digits as its factorization.

117515009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575, while the sum is 29.

The square root of 117515009 is about 10840.4339857775. The cubic root of 117515009 is about 489.8139082329.

The spelling of 117515009 in words is "one hundred seventeen million, five hundred fifteen thousand, nine".