268165 has 4 divisors (see below), whose sum is σ = 321804. Its totient is φ = 214528.

The previous prime is 268153. The next prime is 268171. The reversal of 268165 is 561862.

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 66564 + 201601 = 258^2 + 449^2 .

It is a cyclic number.

It is not a de Polignac number, because 268165 - 2⁵ = 268133 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, 26812 + ... + 26821.

It is an arithmetic number, because the mean of its divisors is an integer number (80451).

2²⁶⁸¹⁶⁵ is an apocalyptic number.

It is an amenable number.

268165 is a deficient number, since it is larger than the sum of its proper divisors (53639).

268165 is an equidigital number, since it uses as much as digits as its factorization.

268165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53638.

The product of its digits is 2880, while the sum is 28.

The square root of 268165 is about 517.8465023537. The cubic root of 268165 is about 64.4862859692.

The spelling of 268165 in words is "two hundred sixty-eight thousand, one hundred sixty-five".