316251361 has 4 divisors (see below), whose sum is σ = 316306692. Its totient is φ = 316196032.

The previous prime is 316251359. The next prime is 316251373. The reversal of 316251361 is 163152613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220700736 + 95550625 = 14856^2 + 9775^2 .

It is a cyclic number.

It is not a de Polignac number, because 316251361 - 2¹ = 316251359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316251461) 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, 17956 + ... + 30901.

It is an arithmetic number, because the mean of its divisors is an integer number (79076673).

Almost surely, 2^316251361 is an apocalyptic number.

It is an amenable number.

316251361 is a deficient number, since it is larger than the sum of its proper divisors (55331).

316251361 is an equidigital number, since it uses as much as digits as its factorization.

316251361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55330.

The product of its digits is 3240, while the sum is 28.

The square root of 316251361 is about 17783.4575097195. The cubic root of 316251361 is about 681.3090132533.

The spelling of 316251361 in words is "three hundred sixteen million, two hundred fifty-one thousand, three hundred sixty-one".