317493031 has 4 divisors (see below), whose sum is σ = 318664864. Its totient is φ = 316321200.

The previous prime is 317493019. The next prime is 317493047. The reversal of 317493031 is 130394713.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 317493031 - 2⁵ = 317492999 is a prime.

It is a super-2 number, since 2×317493031² = 201603649467133922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317492984 and 317493002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317493061) 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, 585510 + ... + 586051.

It is an arithmetic number, because the mean of its divisors is an integer number (79666216).

Almost surely, 2^317493031 is an apocalyptic number.

317493031 is a deficient number, since it is larger than the sum of its proper divisors (1171833).

317493031 is a wasteful number, since it uses less digits than its factorization.

317493031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171832.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 317493031 is about 17818.3341252767. The cubic root of 317493031 is about 682.1995034714.

The spelling of 317493031 in words is "three hundred seventeen million, four hundred ninety-three thousand, thirty-one".