313223252 has 12 divisors (see below), whose sum is σ = 548286816. Its totient is φ = 156569880.

The previous prime is 313223233. The next prime is 313223257. The reversal of 313223252 is 252322313.

313223252 is nontrivially palindromic in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313223257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11627 + ... + 27597.

It is an arithmetic number, because the mean of its divisors is an integer number (45690568).

Almost surely, 2^313223252 is an apocalyptic number.

It is an amenable number.

313223252 is a deficient number, since it is larger than the sum of its proper divisors (235063564).

313223252 is a wasteful number, since it uses less digits than its factorization.

313223252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20878 (or 20876 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 313223252 is about 17698.1143628354. The cubic root of 313223252 is about 679.1275229116.

Adding to 313223252 its reverse (252322313), we get a palindrome (565545565).

The spelling of 313223252 in words is "three hundred thirteen million, two hundred twenty-three thousand, two hundred fifty-two".