265379 has 4 divisors (see below), whose sum is σ = 274560. Its totient is φ = 256200.

The previous prime is 265339. The next prime is 265381. The reversal of 265379 is 973562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973562 = 2 ⋅486781.

It is a cyclic number.

It is not a de Polignac number, because 265379 - 2⁸ = 265123 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 4547 + ... + 4604.

It is an arithmetic number, because the mean of its divisors is an integer number (68640).

2²⁶⁵³⁷⁹ is an apocalyptic number.

265379 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

265379 is a deficient number, since it is larger than the sum of its proper divisors (9181).

265379 is an equidigital number, since it uses as much as digits as its factorization.

265379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9180.

The product of its digits is 11340, while the sum is 32.

The square root of 265379 is about 515.1494928659. The cubic root of 265379 is about 64.2621893935.

The spelling of 265379 in words is "two hundred sixty-five thousand, three hundred seventy-nine".