13438559 has 2 divisors, whose sum is σ = 13438560. Its totient is φ = 13438558.

The previous prime is 13438553. The next prime is 13438561. The reversal of 13438559 is 95583431.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (95583431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13438559 - 2⁸ = 13438303 is a prime.

Together with 13438561, 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 (13438553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6719279 + 6719280.

It is an arithmetic number, because the mean of its divisors is an integer number (6719280).

Almost surely, 2^13438559 is an apocalyptic number.

13438559 is a deficient number, since it is larger than the sum of its proper divisors (1).

13438559 is an equidigital number, since it uses as much as digits as its factorization.

13438559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 13438559 is about 3665.8640182091. The cubic root of 13438559 is about 237.7483805930.

The spelling of 13438559 in words is "thirteen million, four hundred thirty-eight thousand, five hundred fifty-nine".