316845 has 16 divisors (see below), whose sum is σ = 563520. Its totient is φ = 168912.

The previous prime is 316819. The next prime is 316847. The reversal of 316845 is 548613.

It is not a de Polignac number, because 316845 - 2⁷ = 316717 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039 + ... + 1308.

It is an arithmetic number, because the mean of its divisors is an integer number (35220).

2³¹⁶⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

316845 is a deficient number, since it is larger than the sum of its proper divisors (246675).

316845 is a wasteful number, since it uses less digits than its factorization.

316845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361 (or 2355 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 316845 is about 562.8898648937. The cubic root of 316845 is about 68.1735044409.

The spelling of 316845 in words is "three hundred sixteen thousand, eight hundred forty-five".