313223142 has 32 divisors (see below), whose sum is σ = 649075680. Its totient is φ = 100647680.

The previous prime is 313223111. The next prime is 313223173. The reversal of 313223142 is 241322313.

It is an interprime number because it is at equal distance from previous prime (313223111) and next prime (313223173).

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 15 ways as a sum of consecutive naturals, for example, 162778 + ... + 164690.

It is an arithmetic number, because the mean of its divisors is an integer number (20283615).

Almost surely, 2^313223142 is an apocalyptic number.

313223142 is an abundant number, since it is smaller than the sum of its proper divisors (335852538).

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

313223142 is a wasteful number, since it uses less digits than its factorization.

313223142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888.

The product of its digits is 864, while the sum is 21.

The square root of 313223142 is about 17698.1112551594. Note that the first 3 decimals coincide. The cubic root of 313223142 is about 679.1274434113.

Adding to 313223142 its reverse (241322313), we get a palindrome (554545455).

The spelling of 313223142 in words is "three hundred thirteen million, two hundred twenty-three thousand, one hundred forty-two".