13539685 has 16 divisors (see below), whose sum is σ = 17193600. Its totient is φ = 10207296.

The previous prime is 13539683. The next prime is 13539719. The reversal of 13539685 is 58693531.

It is a cyclic number.

It is not a de Polignac number, because 13539685 - 2¹ = 13539683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13539683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33907 + ... + 34303.

It is an arithmetic number, because the mean of its divisors is an integer number (1074600).

Almost surely, 2^13539685 is an apocalyptic number.

It is an amenable number.

13539685 is a deficient number, since it is larger than the sum of its proper divisors (3653915).

13539685 is a wasteful number, since it uses less digits than its factorization.

13539685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780.

The product of its digits is 97200, while the sum is 40.

The square root of 13539685 is about 3679.6310956399. The cubic root of 13539685 is about 238.3432481028.

The spelling of 13539685 in words is "thirteen million, five hundred thirty-nine thousand, six hundred eighty-five".