313721274 has 24 divisors (see below), whose sum is σ = 662208480. Its totient is φ = 99069192.

The previous prime is 313721267. The next prime is 313721279. The reversal of 313721274 is 472127313.

It is not an unprimeable number, because it can be changed into a prime (313721279) 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 11 ways as a sum of consecutive naturals, for example, 70254 + ... + 74585.

It is an arithmetic number, because the mean of its divisors is an integer number (27592020).

Almost surely, 2^313721274 is an apocalyptic number.

313721274 is an abundant number, since it is smaller than the sum of its proper divisors (348487206).

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

313721274 is a wasteful number, since it uses less digits than its factorization.

313721274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144882 (or 144863 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 313721274 is about 17712.1786915105. The cubic root of 313721274 is about 679.4872677554.

Adding to 313721274 its reverse (472127313), we get a palindrome (785848587).

The spelling of 313721274 in words is "three hundred thirteen million, seven hundred twenty-one thousand, two hundred seventy-four".