1313251252 has 24 divisors (see below), whose sum is σ = 2355534720. Its totient is φ = 640342080.

The previous prime is 1313251243. The next prime is 1313251301. The reversal of 1313251252 is 2521523131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40399 + ... + 65257.

It is an arithmetic number, because the mean of its divisors is an integer number (98147280).

Almost surely, 2^1313251252 is an apocalyptic number.

It is an amenable number.

1313251252 is a deficient number, since it is larger than the sum of its proper divisors (1042283468).

1313251252 is a wasteful number, since it uses less digits than its factorization.

1313251252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25191 (or 25189 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 1313251252 is about 36238.8086448768. The cubic root of 1313251252 is about 1095.0886417959.

Adding to 1313251252 its reverse (2521523131), we get a palindrome (3834774383).

The spelling of 1313251252 in words is "one billion, three hundred thirteen million, two hundred fifty-one thousand, two hundred fifty-two".