13539845903 has 2 divisors, whose sum is σ = 13539845904. Its totient is φ = 13539845902.

The previous prime is 13539845887. The next prime is 13539845947. The reversal of 13539845903 is 30954893531.

It is a happy number.

13539845903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13539845903 - 2⁴ = 13539845887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13539845953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6769922951 + 6769922952.

It is an arithmetic number, because the mean of its divisors is an integer number (6769922952).

Almost surely, 2^13539845903 is an apocalyptic number.

13539845903 is a deficient number, since it is larger than the sum of its proper divisors (1).

13539845903 is an equidigital number, since it uses as much as digits as its factorization.

13539845903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 50.

The spelling of 13539845903 in words is "thirteen billion, five hundred thirty-nine million, eight hundred forty-five thousand, nine hundred three".