316087961 has 4 divisors (see below), whose sum is σ = 361243392. Its totient is φ = 270932532.

The previous prime is 316087939. The next prime is 316087963. The reversal of 316087961 is 169780613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 169780613 = 67 ⋅2534039.

It is a cyclic number.

It is not a de Polignac number, because 316087961 - 2¹⁸ = 315825817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316087963) 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, 22577705 + ... + 22577718.

It is an arithmetic number, because the mean of its divisors is an integer number (90310848).

Almost surely, 2^316087961 is an apocalyptic number.

It is an amenable number.

316087961 is a deficient number, since it is larger than the sum of its proper divisors (45155431).

316087961 is an equidigital number, since it uses as much as digits as its factorization.

316087961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45155430.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 316087961 is about 17778.8627589056. The cubic root of 316087961 is about 681.1916539992.

The spelling of 316087961 in words is "three hundred sixteen million, eighty-seven thousand, nine hundred sixty-one".