13648559 has 2 divisors, whose sum is σ = 13648560. Its totient is φ = 13648558.

The previous prime is 13648541. The next prime is 13648561. The reversal of 13648559 is 95584631.

It is a strong prime.

It is an emirp because it is prime and its reverse (95584631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13648559 - 2⁸ = 13648303 is a prime.

Together with 13648561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13648519) 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, 6824279 + 6824280.

It is an arithmetic number, because the mean of its divisors is an integer number (6824280).

Almost surely, 2^13648559 is an apocalyptic number.

13648559 is a deficient number, since it is larger than the sum of its proper divisors (1).

13648559 is an equidigital number, since it uses as much as digits as its factorization.

13648559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 13648559 is about 3694.3956203958. The cubic root of 13648559 is about 238.9803908913.

The spelling of 13648559 in words is "thirteen million, six hundred forty-eight thousand, five hundred fifty-nine".