13287575 has 18 divisors (see below), whose sum is σ = 19168416. Its totient is φ = 9110640.

The previous prime is 13287541. The next prime is 13287587. The reversal of 13287575 is 57578231.

It is a happy number.

It is not a de Polignac number, because 13287575 - 2¹⁴ = 13271191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 17 ways as a sum of consecutive naturals, for example, 4199 + ... + 6648.

It is an arithmetic number, because the mean of its divisors is an integer number (1064912).

Almost surely, 2^13287575 is an apocalyptic number.

13287575 is a deficient number, since it is larger than the sum of its proper divisors (5880841).

13287575 is a wasteful number, since it uses less digits than its factorization.

13287575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10871 (or 10859 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 13287575 is about 3645.2126138265. The cubic root of 13287575 is about 236.8546468776.

The spelling of 13287575 in words is "thirteen million, two hundred eighty-seven thousand, five hundred seventy-five".