117170505 has 12 divisors (see below), whose sum is σ = 203095620. Its totient is φ = 62490912.

The previous prime is 117170489. The next prime is 117170539. The reversal of 117170505 is 505071711.

It can be written as a sum of positive squares in 2 ways, for example, as 55532304 + 61638201 = 7452^2 + 7851^2 .

It is not a de Polignac number, because 117170505 - 2⁴ = 117170489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1301850 + ... + 1301939.

It is an arithmetic number, because the mean of its divisors is an integer number (16924635).

Almost surely, 2^117170505 is an apocalyptic number.

117170505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117170505 is a deficient number, since it is larger than the sum of its proper divisors (85925115).

117170505 is a wasteful number, since it uses less digits than its factorization.

117170505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603800 (or 2603797 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 27.

The square root of 117170505 is about 10824.5325534177. The cubic root of 117170505 is about 489.3347977622.

The spelling of 117170505 in words is "one hundred seventeen million, one hundred seventy thousand, five hundred five".