316020155 has 16 divisors (see below), whose sum is σ = 414374400. Its totient is φ = 229457760.

The previous prime is 316020149. The next prime is 316020197. The reversal of 316020155 is 551020613.

It is not a de Polignac number, because 316020155 - 2¹⁴ = 316003771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316020155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31886 + ... + 40604.

It is an arithmetic number, because the mean of its divisors is an integer number (25898400).

Almost surely, 2^316020155 is an apocalyptic number.

316020155 is a deficient number, since it is larger than the sum of its proper divisors (98354245).

316020155 is a wasteful number, since it uses less digits than its factorization.

316020155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9394.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 316020155 is about 17776.9557292580. The cubic root of 316020155 is about 681.1429416257.

Adding to 316020155 its reverse (551020613), we get a palindrome (867040768).

The spelling of 316020155 in words is "three hundred sixteen million, twenty thousand, one hundred fifty-five".