859165 has 16 divisors (see below), whose sum is σ = 1115136. Its totient is φ = 633600.

The previous prime is 859121. The next prime is 859181. The reversal of 859165 is 561958.

859165 is nontrivially palindromic in base 16.

859165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 859165 - 2⁷ = 859037 is a prime.

It is a Duffinian number.

Its product of digits (10800) is a multiple of the sum of its prime divisors (300).

It is a self number, because there is not a number n which added to its sum of digits gives 859165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3445 + ... + 3685.

It is an arithmetic number, because the mean of its divisors is an integer number (69696).

2⁸⁵⁹¹⁶⁵ is an apocalyptic number.

It is an amenable number.

859165 is a deficient number, since it is larger than the sum of its proper divisors (255971).

859165 is a wasteful number, since it uses less digits than its factorization.

859165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300.

The product of its digits is 10800, while the sum is 34.

The square root of 859165 is about 926.9115383897. The cubic root of 859165 is about 95.0660666940.

It can be divided in two parts, 859 and 165, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 859165 in words is "eight hundred fifty-nine thousand, one hundred sixty-five".