239974253 has 4 divisors (see below), whose sum is σ = 240068028. Its totient is φ = 239880480.

The previous prime is 239974243. The next prime is 239974277. The reversal of 239974253 is 352479932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32239684 + 207734569 = 5678^2 + 14413^2 .

It is a cyclic number.

It is not a de Polignac number, because 239974253 - 2⁸ = 239973997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239974223) 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, 42938 + ... + 48203.

It is an arithmetic number, because the mean of its divisors is an integer number (60017007).

Almost surely, 2^239974253 is an apocalyptic number.

It is an amenable number.

239974253 is a deficient number, since it is larger than the sum of its proper divisors (93775).

239974253 is an equidigital number, since it uses as much as digits as its factorization.

239974253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93774.

The product of its digits is 408240, while the sum is 44.

The square root of 239974253 is about 15491.1023816899. The cubic root of 239974253 is about 621.4242776418.

The spelling of 239974253 in words is "two hundred thirty-nine million, nine hundred seventy-four thousand, two hundred fifty-three".