316881431 has 8 divisors (see below), whose sum is σ = 327088800. Its totient is φ = 306760608.

The previous prime is 316881427. The next prime is 316881451. The reversal of 316881431 is 134188613.

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 316881431 - 2² = 316881427 is a prime.

It is a super-2 number, since 2×316881431² = 200827682625215522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316881391 and 316881400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316881401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14156 + ... + 28881.

It is an arithmetic number, because the mean of its divisors is an integer number (40886100).

Almost surely, 2^316881431 is an apocalyptic number.

316881431 is a deficient number, since it is larger than the sum of its proper divisors (10207369).

316881431 is a wasteful number, since it uses less digits than its factorization.

316881431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43273.

The product of its digits is 13824, while the sum is 35.

The square root of 316881431 is about 17801.1637540920. The cubic root of 316881431 is about 681.7611721551.

The spelling of 316881431 in words is "three hundred sixteen million, eight hundred eighty-one thousand, four hundred thirty-one".