316161161 has 8 divisors (see below), whose sum is σ = 327273480. Its totient is φ = 305062912.

The previous prime is 316161137. The next prime is 316161169. The reversal of 316161161 is 161161613.

It can be written as a sum of positive squares in 4 ways, for example, as 105185536 + 210975625 = 10256^2 + 14525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 316161161 - 2¹⁰ = 316160137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 316161161.

It is not an unprimeable number, because it can be changed into a prime (316161169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65321 + ... + 69993.

It is an arithmetic number, because the mean of its divisors is an integer number (40909185).

Almost surely, 2^316161161 is an apocalyptic number.

It is an amenable number.

316161161 is a deficient number, since it is larger than the sum of its proper divisors (11112319).

316161161 is a wasteful number, since it uses less digits than its factorization.

316161161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7035.

The product of its digits is 648, while the sum is 26.

The square root of 316161161 is about 17780.9212640965. The cubic root of 316161161 is about 681.2442336464.

The spelling of 316161161 in words is "three hundred sixteen million, one hundred sixty-one thousand, one hundred sixty-one".