265361 has 4 divisors (see below), whose sum is σ = 268800. Its totient is φ = 261924.

The previous prime is 265339. The next prime is 265381. The reversal of 265361 is 163562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 265361 - 2¹⁸ = 3217 is a prime.

It is a Duffinian 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 265361.

It is not an unprimeable number, because it can be changed into a prime (265381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601 + ... + 1758.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

2²⁶⁵³⁶¹ is an apocalyptic number.

It is an amenable number.

265361 is a deficient number, since it is larger than the sum of its proper divisors (3439).

265361 is an equidigital number, since it uses as much as digits as its factorization.

265361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438.

The product of its digits is 1080, while the sum is 23.

The square root of 265361 is about 515.1320219128. The cubic root of 265361 is about 64.2607364456.

It can be divided in two parts, 265 and 361, that added together give a palindrome (626).

The spelling of 265361 in words is "two hundred sixty-five thousand, three hundred sixty-one".