313520205 has 48 divisors (see below), whose sum is σ = 550301184. Its totient is φ = 152232960.

The previous prime is 313520173. The next prime is 313520209. The reversal of 313520205 is 502025313.

It is not a de Polignac number, because 313520205 - 2⁵ = 313520173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313520209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 133219 + ... + 135551.

It is an arithmetic number, because the mean of its divisors is an integer number (11464608).

Almost surely, 2^313520205 is an apocalyptic number.

It is an amenable number.

313520205 is a deficient number, since it is larger than the sum of its proper divisors (236780979).

313520205 is a wasteful number, since it uses less digits than its factorization.

313520205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2389 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 313520205 is about 17706.5017719481. The cubic root of 313520205 is about 679.3420719661.

Adding to 313520205 its reverse (502025313), we get a palindrome (815545518).

The spelling of 313520205 in words is "three hundred thirteen million, five hundred twenty thousand, two hundred five".