3116453981 has 2 divisors, whose sum is σ = 3116453982. Its totient is φ = 3116453980.

The previous prime is 3116453959. The next prime is 3116454031. The reversal of 3116453981 is 1893546113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3105832900 + 10621081 = 55730^2 + 3259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3116453981 is a prime.

It is a super-2 number, since 2×3116453981² = 19424570831381496722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3116452981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558226990 + 1558226991.

It is an arithmetic number, because the mean of its divisors is an integer number (1558226991).

Almost surely, 2^3116453981 is an apocalyptic number.

It is an amenable number.

3116453981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3116453981 is an equidigital number, since it uses as much as digits as its factorization.

3116453981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 3116453981 is about 55825.2091890393. The cubic root of 3116453981 is about 1460.6749211111.

The spelling of 3116453981 in words is "three billion, one hundred sixteen million, four hundred fifty-three thousand, nine hundred eighty-one".