165388315 has 8 divisors (see below), whose sum is σ = 198538560. Its totient is φ = 132262272.

The previous prime is 165388297. The next prime is 165388343. The reversal of 165388315 is 513883561.

165388315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 165388315 - 2¹⁷ = 165257243 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16926 + ... + 24844.

It is an arithmetic number, because the mean of its divisors is an integer number (24817320).

Almost surely, 2^165388315 is an apocalyptic number.

165388315 is a deficient number, since it is larger than the sum of its proper divisors (33150245).

165388315 is an equidigital number, since it uses as much as digits as its factorization.

165388315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12101.

The product of its digits is 86400, while the sum is 40.

The square root of 165388315 is about 12860.3388369047. The cubic root of 165388315 is about 548.9105873721.

The spelling of 165388315 in words is "one hundred sixty-five million, three hundred eighty-eight thousand, three hundred fifteen".