313238513 has 8 divisors (see below), whose sum is σ = 358155840. Its totient is φ = 268363440.

The previous prime is 313238509. The next prime is 313238521. The reversal of 313238513 is 315832313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313238513 - 2² = 313238509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313238543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7358 + ... + 26088.

It is an arithmetic number, because the mean of its divisors is an integer number (44769480).

Almost surely, 2^313238513 is an apocalyptic number.

It is an amenable number.

313238513 is a deficient number, since it is larger than the sum of its proper divisors (44917327).

313238513 is a wasteful number, since it uses less digits than its factorization.

313238513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21127.

The product of its digits is 6480, while the sum is 29.

The square root of 313238513 is about 17698.5455052103. The cubic root of 313238513 is about 679.1385523150.

The spelling of 313238513 in words is "three hundred thirteen million, two hundred thirty-eight thousand, five hundred thirteen".