13513873 has 2 divisors, whose sum is σ = 13513874. Its totient is φ = 13513872.

The previous prime is 13513859. The next prime is 13513897. The reversal of 13513873 is 37831531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12446784 + 1067089 = 3528^2 + 1033^2 .

It is a cyclic number.

It is not a de Polignac number, because 13513873 - 2²¹ = 11416721 is a prime.

It is equal to p₈₈₀₄₆₅ and since 13513873 and 880465 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13513813) 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, 6756936 + 6756937.

It is an arithmetic number, because the mean of its divisors is an integer number (6756937).

Almost surely, 2^13513873 is an apocalyptic number.

It is an amenable number.

13513873 is a deficient number, since it is larger than the sum of its proper divisors (1).

13513873 is an equidigital number, since it uses as much as digits as its factorization.

13513873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 13513873 is about 3676.1220055923. The cubic root of 13513873 is about 238.1916928901.

The spelling of 13513873 in words is "thirteen million, five hundred thirteen thousand, eight hundred seventy-three".