264365 has 8 divisors (see below), whose sum is σ = 326040. Its totient is φ = 205632.

The previous prime is 264359. The next prime is 264371. The reversal of 264365 is 563462.

It is an interprime number because it is at equal distance from previous prime (264359) and next prime (264371).

It can be written as a sum of positive squares in 4 ways, for example, as 21316 + 243049 = 146^2 + 493^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 264365 - 2⁴ = 264349 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 264365.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (40755).

2²⁶⁴³⁶⁵ is an apocalyptic number.

It is an amenable number.

264365 is a deficient number, since it is larger than the sum of its proper divisors (61675).

264365 is a wasteful number, since it uses less digits than its factorization.

264365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471.

The product of its digits is 4320, while the sum is 26.

The square root of 264365 is about 514.1643706054. The cubic root of 264365 is about 64.1802373801.

The spelling of 264365 in words is "two hundred sixty-four thousand, three hundred sixty-five".