317223239 has 4 divisors (see below), whose sum is σ = 318539760. Its totient is φ = 315906720.

The previous prime is 317223227. The next prime is 317223287. The reversal of 317223239 is 932322713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932322713 = 7 ⋅133188959.

It is a cyclic number.

It is not a de Polignac number, because 317223239 - 2⁴ = 317223223 is a prime.

It is a super-2 number, since 2×317223239² = 201261166723302242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317223139) 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, 657899 + ... + 658380.

It is an arithmetic number, because the mean of its divisors is an integer number (79634940).

Almost surely, 2^317223239 is an apocalyptic number.

317223239 is a deficient number, since it is larger than the sum of its proper divisors (1316521).

317223239 is a wasteful number, since it uses less digits than its factorization.

317223239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316520.

The product of its digits is 13608, while the sum is 32.

The square root of 317223239 is about 17810.7618871288. The cubic root of 317223239 is about 682.0062140569.

The spelling of 317223239 in words is "three hundred seventeen million, two hundred twenty-three thousand, two hundred thirty-nine".