115990165 has 8 divisors (see below), whose sum is σ = 141547680. Its totient is φ = 91219152.

The previous prime is 115990163. The next prime is 115990177. The reversal of 115990165 is 561099511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115990165 - 2¹ = 115990163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115990163) 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 7 ways as a sum of consecutive naturals, for example, 196299 + ... + 196888.

It is an arithmetic number, because the mean of its divisors is an integer number (17693460).

Almost surely, 2^115990165 is an apocalyptic number.

It is an amenable number.

115990165 is a deficient number, since it is larger than the sum of its proper divisors (25557515).

115990165 is an equidigital number, since it uses as much as digits as its factorization.

115990165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393251.

The product of its (nonzero) digits is 12150, while the sum is 37.

The square root of 115990165 is about 10769.8730261782. The cubic root of 115990165 is about 487.6861125900.

The spelling of 115990165 in words is "one hundred fifteen million, nine hundred ninety thousand, one hundred sixty-five".