313722345 has 16 divisors (see below), whose sum is σ = 502183872. Its totient is φ = 167242560.

The previous prime is 313722259. The next prime is 313722349. The reversal of 313722345 is 543227313.

It is not a de Polignac number, because 313722345 - 2⁷ = 313722217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313722349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48894 + ... + 54936.

It is an arithmetic number, because the mean of its divisors is an integer number (31386492).

Almost surely, 2^313722345 is an apocalyptic number.

It is an amenable number.

313722345 is a deficient number, since it is larger than the sum of its proper divisors (188461527).

313722345 is a wasteful number, since it uses less digits than its factorization.

313722345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512.

The product of its digits is 15120, while the sum is 30.

The square root of 313722345 is about 17712.2089249196. The cubic root of 313722345 is about 679.4880409790.

Adding to 313722345 its reverse (543227313), we get a palindrome (856949658).

The spelling of 313722345 in words is "three hundred thirteen million, seven hundred twenty-two thousand, three hundred forty-five".