316881 has 12 divisors (see below), whose sum is σ = 462852. Its totient is φ = 208896.

The previous prime is 316879. The next prime is 316891. The reversal of 316881 is 188613.

It can be written as a sum of positive squares in 2 ways, for example, as 266256 + 50625 = 516^2 + 225^2 .

It is not a de Polignac number, because 316881 - 2¹ = 316879 is a prime.

It is a super-2 number, since 2×316881² = 200827136322, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316881.

It is not an unprimeable number, because it can be changed into a prime (316801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1105 + ... + 1361.

It is an arithmetic number, because the mean of its divisors is an integer number (38571).

2³¹⁶⁸⁸¹ is an apocalyptic number.

It is an amenable number.

316881 is a deficient number, since it is larger than the sum of its proper divisors (145971).

316881 is a wasteful number, since it uses less digits than its factorization.

316881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 397 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 316881 is about 562.9218418218. The cubic root of 316881 is about 68.1760863060.

It can be divided in two parts, 3168 and 81, that added together give a square (3249 = 57²).

The spelling of 316881 in words is "three hundred sixteen thousand, eight hundred eighty-one".