316845945 has 32 divisors (see below), whose sum is σ = 606614400. Its totient is φ = 155984832.

The previous prime is 316845937. The next prime is 316845959. The reversal of 316845945 is 549548613.

It is not a de Polignac number, because 316845945 - 2³ = 316845937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 316845945.

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 31 ways as a sum of consecutive naturals, for example, 88515 + ... + 92024.

It is an arithmetic number, because the mean of its divisors is an integer number (18956700).

Almost surely, 2^316845945 is an apocalyptic number.

It is an amenable number.

316845945 is a deficient number, since it is larger than the sum of its proper divisors (289768455).

316845945 is a wasteful number, since it uses less digits than its factorization.

316845945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180566 (or 180560 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 316845945 is about 17800.1669935987. The cubic root of 316845945 is about 681.7357221731.

The spelling of 316845945 in words is "three hundred sixteen million, eight hundred forty-five thousand, nine hundred forty-five".