316265161 has 4 divisors (see below), whose sum is σ = 334869012. Its totient is φ = 297661312.

The previous prime is 316265153. The next prime is 316265177. The reversal of 316265161 is 161562613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161562613 = 8861 ⋅18233.

It can be written as a sum of positive squares in 2 ways, for example, as 167547136 + 148718025 = 12944^2 + 12195^2 .

It is a cyclic number.

It is not a de Polignac number, because 316265161 - 2³ = 316265153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316265141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9301900 + ... + 9301933.

It is an arithmetic number, because the mean of its divisors is an integer number (83717253).

Almost surely, 2^316265161 is an apocalyptic number.

It is an amenable number.

316265161 is a deficient number, since it is larger than the sum of its proper divisors (18603851).

316265161 is a wasteful number, since it uses less digits than its factorization.

316265161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18603850.

The product of its digits is 6480, while the sum is 31.

The square root of 316265161 is about 17783.8455065264. The cubic root of 316265161 is about 681.3189230158.

The spelling of 316265161 in words is "three hundred sixteen million, two hundred sixty-five thousand, one hundred sixty-one".