316000981 has 12 divisors (see below), whose sum is σ = 343882980. Its totient is φ = 290147840.

The previous prime is 316000973. The next prime is 316001009. The reversal of 316000981 is 189000613.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 36108081 + 279892900 = 6009^2 + 16730^2 .

It is not a de Polignac number, because 316000981 - 2³ = 316000973 is a prime.

It is a super-2 number, since 2×316000981² = 199713239985924722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316000901) 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, 1486 + ... + 25183.

It is an arithmetic number, because the mean of its divisors is an integer number (28656915).

Almost surely, 2^316000981 is an apocalyptic number.

It is an amenable number.

316000981 is a deficient number, since it is larger than the sum of its proper divisors (27881999).

316000981 is a wasteful number, since it uses less digits than its factorization.

316000981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26744 (or 26727 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 316000981 is about 17776.4164273905. The cubic root of 316000981 is about 681.1291656068.

The spelling of 316000981 in words is "three hundred sixteen million, nine hundred eighty-one", and thus it is an aban number.