13504859 has 2 divisors, whose sum is σ = 13504860. Its totient is φ = 13504858.

The previous prime is 13504819. The next prime is 13504861. The reversal of 13504859 is 95840531.

13504859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (95840531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13504859 is a prime.

Together with 13504861, 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 (13504819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752429 + 6752430.

It is an arithmetic number, because the mean of its divisors is an integer number (6752430).

Almost surely, 2^13504859 is an apocalyptic number.

13504859 is a deficient number, since it is larger than the sum of its proper divisors (1).

13504859 is an equidigital number, since it uses as much as digits as its factorization.

13504859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 13504859 is about 3674.8957808352. The cubic root of 13504859 is about 238.1387217082.

The spelling of 13504859 in words is "thirteen million, five hundred four thousand, eight hundred fifty-nine".