117165705 has 16 divisors (see below), whose sum is σ = 189725760. Its totient is φ = 61734848.

The previous prime is 117165701. The next prime is 117165721. The reversal of 117165705 is 507561711.

It is a cyclic number.

It is not a de Polignac number, because 117165705 - 2² = 117165701 is a prime.

It is a super-3 number, since 3×117165705³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (117165701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45810 + ... + 48299.

It is an arithmetic number, because the mean of its divisors is an integer number (11857860).

Almost surely, 2^117165705 is an apocalyptic number.

117165705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117165705 is a deficient number, since it is larger than the sum of its proper divisors (72560055).

117165705 is an equidigital number, since it uses as much as digits as its factorization.

117165705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94200.

The product of its (nonzero) digits is 7350, while the sum is 33.

The square root of 117165705 is about 10824.3108325657. The cubic root of 117165705 is about 489.3281156508.

The spelling of 117165705 in words is "one hundred seventeen million, one hundred sixty-five thousand, seven hundred five".