316399155 has 64 divisors (see below), whose sum is σ = 567751680. Its totient is φ = 149630976.

The previous prime is 316399151. The next prime is 316399157. The reversal of 316399155 is 551993613.

It is not a de Polignac number, because 316399155 - 2² = 316399151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (316399151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 427776 + ... + 428514.

It is an arithmetic number, because the mean of its divisors is an integer number (8871120).

Almost surely, 2^316399155 is an apocalyptic number.

316399155 is a deficient number, since it is larger than the sum of its proper divisors (251352525).

316399155 is a wasteful number, since it uses less digits than its factorization.

316399155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860.

The product of its digits is 109350, while the sum is 42.

The square root of 316399155 is about 17787.6124030180. The cubic root of 316399155 is about 681.4151289523.

The spelling of 316399155 in words is "three hundred sixteen million, three hundred ninety-nine thousand, one hundred fifty-five".