13321559 has 2 divisors, whose sum is σ = 13321560. Its totient is φ = 13321558.

The previous prime is 13321513. The next prime is 13321579. The reversal of 13321559 is 95512331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13321559 - 2⁸ = 13321303 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13321579) 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, 6660779 + 6660780.

It is an arithmetic number, because the mean of its divisors is an integer number (6660780).

Almost surely, 2^13321559 is an apocalyptic number.

13321559 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321559 is an equidigital number, since it uses as much as digits as its factorization.

13321559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 29.

The square root of 13321559 is about 3649.8710936141. The cubic root of 13321559 is about 237.0563996640.

The spelling of 13321559 in words is "thirteen million, three hundred twenty-one thousand, five hundred fifty-nine".