565135 has 4 divisors (see below), whose sum is σ = 678168. Its totient is φ = 452104.

The previous prime is 565127. The next prime is 565163. The reversal of 565135 is 531565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 565135 - 2³ = 565127 is a prime.

It is a Duffinian number.

565135 is a lucky 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, 56509 + ... + 56518.

It is an arithmetic number, because the mean of its divisors is an integer number (169542).

2⁵⁶⁵¹³⁵ is an apocalyptic number.

565135 is a deficient number, since it is larger than the sum of its proper divisors (113033).

565135 is a wasteful number, since it uses less digits than its factorization.

565135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113032.

The product of its digits is 2250, while the sum is 25.

The square root of 565135 is about 751.7546142193. The cubic root of 565135 is about 82.6768779299.

The spelling of 565135 in words is "five hundred sixty-five thousand, one hundred thirty-five".