317274021 has 12 divisors (see below), whose sum is σ = 459033120. Its totient is φ = 211170600.

The previous prime is 317273981. The next prime is 317274047. The reversal of 317274021 is 120472713.

It is a happy number.

It is not a de Polignac number, because 317274021 - 2¹¹ = 317271973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317274071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22905 + ... + 34046.

It is an arithmetic number, because the mean of its divisors is an integer number (38252760).

Almost surely, 2^317274021 is an apocalyptic number.

It is an amenable number.

317274021 is a deficient number, since it is larger than the sum of its proper divisors (141759099).

317274021 is a wasteful number, since it uses less digits than its factorization.

317274021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57576 (or 57573 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 317274021 is about 17812.1874288365. The cubic root of 317274021 is about 682.0426046145.

The spelling of 317274021 in words is "three hundred seventeen million, two hundred seventy-four thousand, twenty-one".