313720497 has 12 divisors (see below), whose sum is σ = 455302224. Its totient is φ = 208154520.

The previous prime is 313720453. The next prime is 313720501. The reversal of 313720497 is 794027313.

It is not a de Polignac number, because 313720497 - 2¹² = 313716401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313720417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80703 + ... + 84500.

It is an arithmetic number, because the mean of its divisors is an integer number (37941852).

Almost surely, 2^313720497 is an apocalyptic number.

It is an amenable number.

313720497 is a deficient number, since it is larger than the sum of its proper divisors (141581727).

313720497 is a wasteful number, since it uses less digits than its factorization.

313720497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165420 (or 165417 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 313720497 is about 17712.1567574364. The cubic root of 313720497 is about 679.4867067882.

The spelling of 313720497 in words is "three hundred thirteen million, seven hundred twenty thousand, four hundred ninety-seven".