313662513 has 4 divisors (see below), whose sum is σ = 418216688. Its totient is φ = 209108340.

The previous prime is 313662497. The next prime is 313662527. The reversal of 313662513 is 315266313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 313662513 - 2⁴ = 313662497 is a prime.

It is a super-2 number, since 2×313662513² = 196768344122950338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313663513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52277083 + ... + 52277088.

It is an arithmetic number, because the mean of its divisors is an integer number (104554172).

Almost surely, 2^313662513 is an apocalyptic number.

It is an amenable number.

313662513 is a deficient number, since it is larger than the sum of its proper divisors (104554175).

313662513 is a wasteful number, since it uses less digits than its factorization.

313662513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104554174.

The product of its digits is 9720, while the sum is 30.

The square root of 313662513 is about 17710.5198399144. The cubic root of 313662513 is about 679.4448417255. Note that the first 3 decimals are identical.

The spelling of 313662513 in words is "three hundred thirteen million, six hundred sixty-two thousand, five hundred thirteen".