118765165 has 4 divisors (see below), whose sum is σ = 142518204. Its totient is φ = 95012128.

The previous prime is 118765159. The next prime is 118765217. The reversal of 118765165 is 561567811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49758916 + 69006249 = 7054^2 + 8307^2 .

It is a cyclic number.

It is not a de Polignac number, because 118765165 - 2¹⁹ = 118240877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11876512 + ... + 11876521.

It is an arithmetic number, because the mean of its divisors is an integer number (35629551).

Almost surely, 2^118765165 is an apocalyptic number.

It is an amenable number.

118765165 is a deficient number, since it is larger than the sum of its proper divisors (23753039).

118765165 is an equidigital number, since it uses as much as digits as its factorization.

118765165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23753038.

The product of its digits is 50400, while the sum is 40.

The square root of 118765165 is about 10897.9431545590. The cubic root of 118765165 is about 491.5447087467.

The spelling of 118765165 in words is "one hundred eighteen million, seven hundred sixty-five thousand, one hundred sixty-five".