85165 has 4 divisors (see below), whose sum is σ = 102204. Its totient is φ = 68128.

The previous prime is 85159. The next prime is 85193. The reversal of 85165 is 56158.

85165 is nontrivially palindromic in base 13.

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 24649 + 60516 = 157^2 + 246^2 .

It is a cyclic number.

It is not a de Polignac number, because 85165 - 2⁵ = 85133 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, 8512 + ... + 8521.

It is an arithmetic number, because the mean of its divisors is an integer number (25551).

2⁸⁵¹⁶⁵ is an apocalyptic number.

It is an amenable number.

85165 is a deficient number, since it is larger than the sum of its proper divisors (17039).

85165 is a wasteful number, since it uses less digits than its factorization.

85165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17038.

The product of its digits is 1200, while the sum is 25.

The square root of 85165 is about 291.8304302159. The cubic root of 85165 is about 43.9967284069.

The spelling of 85165 in words is "eighty-five thousand, one hundred sixty-five".