316321605 has 48 divisors (see below), whose sum is σ = 572994240. Its totient is φ = 167401728.

The previous prime is 316321591. The next prime is 316321627. The reversal of 316321605 is 506123613.

316321605 is a `hidden beast` number, since 31 + 6 + 3 + 21 + 605 = 666.

It is not a de Polignac number, because 316321605 - 2⁷ = 316321477 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167949 + ... + 169821.

It is an arithmetic number, because the mean of its divisors is an integer number (11937380).

Almost surely, 2^316321605 is an apocalyptic number.

It is an amenable number.

316321605 is a deficient number, since it is larger than the sum of its proper divisors (256672635).

316321605 is a wasteful number, since it uses less digits than its factorization.

316321605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 316321605 is about 17785.4323815869. The cubic root of 316321605 is about 681.3594523800.

The spelling of 316321605 in words is "three hundred sixteen million, three hundred twenty-one thousand, six hundred five".