13295981 has 2 divisors, whose sum is σ = 13295982. Its totient is φ = 13295980.

The previous prime is 13295911. The next prime is 13295983. The reversal of 13295981 is 18959231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12709225 + 586756 = 3565^2 + 766^2 .

It is an emirp because it is prime and its reverse (18959231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13295981 is a prime.

It is a super-2 number, since 2×13295981² = 353566221504722, which contains 22 as substring.

Together with 13295983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13295983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6647990 + 6647991.

It is an arithmetic number, because the mean of its divisors is an integer number (6647991).

Almost surely, 2^13295981 is an apocalyptic number.

It is an amenable number.

13295981 is a deficient number, since it is larger than the sum of its proper divisors (1).

13295981 is an equidigital number, since it uses as much as digits as its factorization.

13295981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 38.

The square root of 13295981 is about 3646.3654506920. The cubic root of 13295981 is about 236.9045827628.

The spelling of 13295981 in words is "thirteen million, two hundred ninety-five thousand, nine hundred eighty-one".