13316791 has 2 divisors, whose sum is σ = 13316792. Its totient is φ = 13316790.

The previous prime is 13316783. The next prime is 13316801. The reversal of 13316791 is 19761331.

It is a weak prime.

It is an emirp because it is prime and its reverse (19761331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13316791 - 2³ = 13316783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13316731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6658395 + 6658396.

It is an arithmetic number, because the mean of its divisors is an integer number (6658396).

Almost surely, 2^13316791 is an apocalyptic number.

13316791 is a deficient number, since it is larger than the sum of its proper divisors (1).

13316791 is an equidigital number, since it uses as much as digits as its factorization.

13316791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 31.

The square root of 13316791 is about 3649.2178614054. The cubic root of 13316791 is about 237.0281141911.

The spelling of 13316791 in words is "thirteen million, three hundred sixteen thousand, seven hundred ninety-one".