13289539 has 4 divisors (see below), whose sum is σ = 13303720. Its totient is φ = 13275360.

The previous prime is 13289519. The next prime is 13289543. The reversal of 13289539 is 93598231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13289539 - 2¹⁹ = 12765251 is a prime.

It is a super-2 number, since 2×13289539² = 353223693665042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13289509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5577 + ... + 7594.

It is an arithmetic number, because the mean of its divisors is an integer number (3325930).

Almost surely, 2^13289539 is an apocalyptic number.

13289539 is a deficient number, since it is larger than the sum of its proper divisors (14181).

13289539 is a wasteful number, since it uses less digits than its factorization.

13289539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14180.

The product of its digits is 58320, while the sum is 40.

The square root of 13289539 is about 3645.4819983097. The cubic root of 13289539 is about 236.8663159145.

The spelling of 13289539 in words is "thirteen million, two hundred eighty-nine thousand, five hundred thirty-nine".