27165 has 8 divisors (see below), whose sum is σ = 43488. Its totient is φ = 14480.

The previous prime is 27143. The next prime is 27179. The reversal of 27165 is 56172.

27165 = 30² + 31² + ... + 47².

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

It is not a de Polignac number, because 27165 - 2¹⁰ = 26141 is a prime.

It is a Curzon number.

It is a congruent number.

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, 891 + ... + 920.

It is an arithmetic number, because the mean of its divisors is an integer number (5436).

2²⁷¹⁶⁵ is an apocalyptic number.

It is an amenable number.

27165 is a deficient number, since it is larger than the sum of its proper divisors (16323).

27165 is a wasteful number, since it uses less digits than its factorization.

27165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819.

The product of its digits is 420, while the sum is 21.

The square root of 27165 is about 164.8180815323. The cubic root of 27165 is about 30.0609870464.

The spelling of 27165 in words is "twenty-seven thousand, one hundred sixty-five".