253479361 has 4 divisors (see below), whose sum is σ = 266820400. Its totient is φ = 240138324.

The previous prime is 253479349. The next prime is 253479371. The reversal of 253479361 is 163974352.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-253479361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253479371) 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, 6670491 + ... + 6670528.

It is an arithmetic number, because the mean of its divisors is an integer number (66705100).

Almost surely, 2^253479361 is an apocalyptic number.

It is an amenable number.

253479361 is a deficient number, since it is larger than the sum of its proper divisors (13341039).

253479361 is a wasteful number, since it uses less digits than its factorization.

253479361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13341038.

The product of its digits is 136080, while the sum is 40.

The square root of 253479361 is about 15921.0351736311. The cubic root of 253479361 is about 632.8695511041.

The spelling of 253479361 in words is "two hundred fifty-three million, four hundred seventy-nine thousand, three hundred sixty-one".