265369 has 8 divisors (see below), whose sum is σ = 289800. Its totient is φ = 241536.

The previous prime is 265339. The next prime is 265381. The reversal of 265369 is 963562.

It can be written as a sum of positive squares in 4 ways, for example, as 144 + 265225 = 12^2 + 515^2 .

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 265369 - 2⁵ = 265337 is a prime.

It is a super-2 number, since 2×265369² = 140841412322, which contains 22 as substring.

It is a Duffinian number.

265369 is a lucky number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 265369.

It is not an unprimeable number, because it can be changed into a prime (265339) by changing a digit.

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, 1707 + ... + 1855.

It is an arithmetic number, because the mean of its divisors is an integer number (36225).

2²⁶⁵³⁶⁹ is an apocalyptic number.

It is an amenable number.

265369 is a deficient number, since it is larger than the sum of its proper divisors (24431).

265369 is a wasteful number, since it uses less digits than its factorization.

265369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its digits is 9720, while the sum is 31.

The square root of 265369 is about 515.1397868540. The cubic root of 265369 is about 64.2613822083.

The spelling of 265369 in words is "two hundred sixty-five thousand, three hundred sixty-nine".