316905 has 16 divisors (see below), whose sum is σ = 521664. Its totient is φ = 164160.

The previous prime is 316903. The next prime is 316907. The reversal of 316905 is 509613.

It is an interprime number because it is at equal distance from previous prime (316903) and next prime (316907).

It is not a de Polignac number, because 316905 - 2¹ = 316903 is a prime.

It is a plaindrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316905.

It is not an unprimeable number, because it can be changed into a prime (316903) 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, 270 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (32604).

2³¹⁶⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

316905 is a deficient number, since it is larger than the sum of its proper divisors (204759).

316905 is a wasteful number, since it uses less digits than its factorization.

316905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 316905 is about 562.9431587647. The cubic root of 316905 is about 68.1778074408.

It can be divided in two parts, 316 and 905, that added together give a palindrome (1221).

The spelling of 316905 in words is "three hundred sixteen thousand, nine hundred five".