13042091 has 2 divisors, whose sum is σ = 13042092. Its totient is φ = 13042090.

The previous prime is 13042087. The next prime is 13042097. The reversal of 13042091 is 19024031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13042091 - 2² = 13042087 is a prime.

It is a super-2 number, since 2×13042091² = 340192275304562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13042097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521045 + 6521046.

It is an arithmetic number, because the mean of its divisors is an integer number (6521046).

Almost surely, 2^13042091 is an apocalyptic number.

13042091 is a deficient number, since it is larger than the sum of its proper divisors (1).

13042091 is an equidigital number, since it uses as much as digits as its factorization.

13042091 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 20.

The square root of 13042091 is about 3611.3835298954. The cubic root of 13042091 is about 235.3869646850.

The spelling of 13042091 in words is "thirteen million, forty-two thousand, ninety-one".