165081115 has 8 divisors (see below), whose sum is σ = 201455280. Its totient is φ = 129826272.

The previous prime is 165081089. The next prime is 165081127. The reversal of 165081115 is 511180561.

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 165081115 - 2⁵ = 165081083 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, 279504 + ... + 280093.

It is an arithmetic number, because the mean of its divisors is an integer number (25181910).

Almost surely, 2^165081115 is an apocalyptic number.

165081115 is a deficient number, since it is larger than the sum of its proper divisors (36374165).

165081115 is an equidigital number, since it uses as much as digits as its factorization.

165081115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559661.

The product of its (nonzero) digits is 1200, while the sum is 28.

The square root of 165081115 is about 12848.3895878044. The cubic root of 165081115 is about 548.5705193237.

The spelling of 165081115 in words is "one hundred sixty-five million, eighty-one thousand, one hundred fifteen".