313223152 has 20 divisors (see below), whose sum is σ = 662040216. Its totient is φ = 142374080.

The previous prime is 313223111. The next prime is 313223173. The reversal of 313223152 is 251322313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889663 + ... + 890014.

Almost surely, 2^313223152 is an apocalyptic number.

It is an amenable number.

313223152 is an abundant number, since it is smaller than the sum of its proper divisors (348817064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313223152 is a wasteful number, since it uses less digits than its factorization.

313223152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779696 (or 1779690 counting only the distinct ones).

The product of its digits is 1080, while the sum is 22.

The square root of 313223152 is about 17698.1115376754. Note that the first 3 decimals coincide. The cubic root of 313223152 is about 679.1274506386.

Adding to 313223152 its reverse (251322313), we get a palindrome (564545465).

The spelling of 313223152 in words is "three hundred thirteen million, two hundred twenty-three thousand, one hundred fifty-two".