316785132 has 18 divisors (see below), whose sum is σ = 800762508. Its totient is φ = 105595032.

The previous prime is 316785127. The next prime is 316785137. The reversal of 316785132 is 231587613.

It is an interprime number because it is at equal distance from previous prime (316785127) and next prime (316785137).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 8799587 = 316785132 / (3 + 1 + 6 + 7 + 8 + 5 + 1 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (316785137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4399758 + ... + 4399829.

It is an arithmetic number, because the mean of its divisors is an integer number (44486806).

Almost surely, 2^316785132 is an apocalyptic number.

It is an amenable number.

316785132 is an abundant number, since it is smaller than the sum of its proper divisors (483977376).

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

316785132 is a wasteful number, since it uses less digits than its factorization.

316785132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799597 (or 8799592 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 316785132 is about 17798.4586973142. The cubic root of 316785132 is about 681.6921036599.

The spelling of 316785132 in words is "three hundred sixteen million, seven hundred eighty-five thousand, one hundred thirty-two".