265281 has 4 divisors (see below), whose sum is σ = 353712. Its totient is φ = 176852.

The previous prime is 265277. The next prime is 265313. The reversal of 265281 is 182562.

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 265281 - 2² = 265277 is a prime.

It is a super-2 number, since 2×265281² = 140748017922, which contains 22 as substring.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 265281.

It is not an unprimeable number, because it can be changed into a prime (265231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44211 + ... + 44216.

It is an arithmetic number, because the mean of its divisors is an integer number (88428).

2²⁶⁵²⁸¹ is an apocalyptic number.

It is an amenable number.

265281 is a deficient number, since it is larger than the sum of its proper divisors (88431).

265281 is an equidigital number, since it uses as much as digits as its factorization.

265281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88430.

The product of its digits is 960, while the sum is 24.

The square root of 265281 is about 515.0543660625. The cubic root of 265281 is about 64.2542781044.

The spelling of 265281 in words is "two hundred sixty-five thousand, two hundred eighty-one".