317149020 has 72 divisors (see below), whose sum is σ = 997664304. Its totient is φ = 84571776.

The previous prime is 317149009. The next prime is 317149031. The reversal of 317149020 is 20941713.

317149020 is a `hidden beast` number, since 3 + 171 + 490 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (317149009) and next prime (317149031).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 27769 + ... + 37488.

Almost surely, 2^317149020 is an apocalyptic number.

317149020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

317149020 is an abundant number, since it is smaller than the sum of its proper divisors (680515284).

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

317149020 is a wasteful number, since it uses less digits than its factorization.

317149020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65281 (or 65267 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 317149020 is about 17808.6782215862. The cubic root of 317149020 is about 681.9530214772.

The spelling of 317149020 in words is "three hundred seventeen million, one hundred forty-nine thousand, twenty".