317212530 has 32 divisors (see below), whose sum is σ = 764290944. Its totient is φ = 84258816.

The previous prime is 317212529. The next prime is 317212549. The reversal of 317212530 is 35212713.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 317212530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12862 + ... + 28281.

It is an arithmetic number, because the mean of its divisors is an integer number (23884092).

Almost surely, 2^317212530 is an apocalyptic number.

317212530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

317212530 is an abundant number, since it is smaller than the sum of its proper divisors (447078414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317212530 is a wasteful number, since it uses less digits than its factorization.

317212530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41410.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 317212530 is about 17810.4612517475. The cubic root of 317212530 is about 681.9985394545.

The spelling of 317212530 in words is "three hundred seventeen million, two hundred twelve thousand, five hundred thirty".