13090081 has 2 divisors, whose sum is σ = 13090082. Its totient is φ = 13090080.

The previous prime is 13090067. The next prime is 13090087. The reversal of 13090081 is 18009031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12845056 + 245025 = 3584^2 + 495^2 .

It is an emirp because it is prime and its reverse (18009031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13090081 is a prime.

It is a super-2 number, since 2×13090081² = 342700441173122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13090087) 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, 6545040 + 6545041.

It is an arithmetic number, because the mean of its divisors is an integer number (6545041).

Almost surely, 2^13090081 is an apocalyptic number.

It is an amenable number.

13090081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13090081 is an equidigital number, since it uses as much as digits as its factorization.

13090081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 13090081 is about 3618.0216970051. The cubic root of 13090081 is about 235.6753231853.

The spelling of 13090081 in words is "thirteen million, ninety thousand, eighty-one".