265261323 has 16 divisors (see below), whose sum is σ = 370990080. Its totient is φ = 168267264.

The previous prime is 265261309. The next prime is 265261333. The reversal of 265261323 is 323162562.

It is not a de Polignac number, because 265261323 - 2⁶ = 265261259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265261333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3358 + ... + 23276.

It is an arithmetic number, because the mean of its divisors is an integer number (23186880).

Almost surely, 2^265261323 is an apocalyptic number.

265261323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

265261323 is a deficient number, since it is larger than the sum of its proper divisors (105728757).

265261323 is a wasteful number, since it uses less digits than its factorization.

265261323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20138.

The product of its digits is 12960, while the sum is 30.

The square root of 265261323 is about 16286.8450904403. The cubic root of 265261323 is about 642.5268939572.

The spelling of 265261323 in words is "two hundred sixty-five million, two hundred sixty-one thousand, three hundred twenty-three".