13513859 has 2 divisors, whose sum is σ = 13513860. Its totient is φ = 13513858.

The previous prime is 13513847. The next prime is 13513873. The reversal of 13513859 is 95831531.

It is a weak prime.

It is an emirp because it is prime and its reverse (95831531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13513859 is a prime.

It is not a weakly prime, because it can be changed into another prime (13513459) 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, 6756929 + 6756930.

It is an arithmetic number, because the mean of its divisors is an integer number (6756930).

Almost surely, 2^13513859 is an apocalyptic number.

13513859 is a deficient number, since it is larger than the sum of its proper divisors (1).

13513859 is an equidigital number, since it uses as much as digits as its factorization.

13513859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 35.

The square root of 13513859 is about 3676.1201014113. The cubic root of 13513859 is about 238.1916106367.

The spelling of 13513859 in words is "thirteen million, five hundred thirteen thousand, eight hundred fifty-nine".