13529865 has 16 divisors (see below), whose sum is σ = 22589568. Its totient is φ = 6902016.

The previous prime is 13529833. The next prime is 13529891. The reversal of 13529865 is 56892531.

13529865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13529865 - 2⁵ = 13529833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19264 + ... + 19953.

It is an arithmetic number, because the mean of its divisors is an integer number (1411848).

Almost surely, 2^13529865 is an apocalyptic number.

13529865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13529865 is a deficient number, since it is larger than the sum of its proper divisors (9059703).

13529865 is a wasteful number, since it uses less digits than its factorization.

13529865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39248.

The product of its digits is 64800, while the sum is 39.

The square root of 13529865 is about 3678.2964807095. The cubic root of 13529865 is about 238.2856126712.

The spelling of 13529865 in words is "thirteen million, five hundred twenty-nine thousand, eight hundred sixty-five".