13568081 has 2 divisors, whose sum is σ = 13568082. Its totient is φ = 13568080.

The previous prime is 13568041. The next prime is 13568083. The reversal of 13568081 is 18086531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10182481 + 3385600 = 3191^2 + 1840^2 .

It is a cyclic number.

It is not a de Polignac number, because 13568081 - 2¹⁴ = 13551697 is a prime.

It is a super-2 number, since 2×13568081² = 368185644045122, which contains 22 as substring.

Together with 13568083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13568083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6784040 + 6784041.

It is an arithmetic number, because the mean of its divisors is an integer number (6784041).

Almost surely, 2^13568081 is an apocalyptic number.

It is an amenable number.

13568081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13568081 is an equidigital number, since it uses as much as digits as its factorization.

13568081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 13568081 is about 3683.4876136618. The cubic root of 13568081 is about 238.5097529366.

The spelling of 13568081 in words is "thirteen million, five hundred sixty-eight thousand, eighty-one".