316645845 has 16 divisors (see below), whose sum is σ = 508610880. Its totient is φ = 168218624.

The previous prime is 316645843. The next prime is 316645877. The reversal of 316645845 is 548546613.

It is a cyclic number.

It is not a de Polignac number, because 316645845 - 2¹ = 316645843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 316645797 and 316645806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316645841) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37215 + ... + 44924.

It is an arithmetic number, because the mean of its divisors is an integer number (31788180).

Almost surely, 2^316645845 is an apocalyptic number.

It is an amenable number.

316645845 is a deficient number, since it is larger than the sum of its proper divisors (191965035).

316645845 is a wasteful number, since it uses less digits than its factorization.

316645845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82404.

The product of its digits is 345600, while the sum is 42.

The square root of 316645845 is about 17794.5453721077. The cubic root of 316645845 is about 681.5921781287.

The spelling of 316645845 in words is "three hundred sixteen million, six hundred forty-five thousand, eight hundred forty-five".