117455165 has 4 divisors (see below), whose sum is σ = 140946204. Its totient is φ = 93964128.

The previous prime is 117455141. The next prime is 117455167. The reversal of 117455165 is 561554711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561554711 = 1213 ⋅462947.

It can be written as a sum of positive squares in 2 ways, for example, as 21473956 + 95981209 = 4634^2 + 9797^2 .

It is a cyclic number.

It is not a de Polignac number, because 117455165 - 2²⁶ = 50346301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117455167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11745512 + ... + 11745521.

It is an arithmetic number, because the mean of its divisors is an integer number (35236551).

Almost surely, 2^117455165 is an apocalyptic number.

It is an amenable number.

117455165 is a deficient number, since it is larger than the sum of its proper divisors (23491039).

117455165 is an equidigital number, since it uses as much as digits as its factorization.

117455165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23491038.

The product of its digits is 21000, while the sum is 35.

The square root of 117455165 is about 10837.6734126841. The cubic root of 117455165 is about 489.7307489243.

The spelling of 117455165 in words is "one hundred seventeen million, four hundred fifty-five thousand, one hundred sixty-five".