13529289 has 4 divisors (see below), whose sum is σ = 18039056. Its totient is φ = 9019524.

The previous prime is 13529281. The next prime is 13529291. The reversal of 13529289 is 98292531.

13529289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98292531 = 3 ⋅32764177.

It is not a de Polignac number, because 13529289 - 2³ = 13529281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13529281) 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, 2254879 + ... + 2254884.

It is an arithmetic number, because the mean of its divisors is an integer number (4509764).

Almost surely, 2^13529289 is an apocalyptic number.

It is an amenable number.

13529289 is a deficient number, since it is larger than the sum of its proper divisors (4509767).

13529289 is an equidigital number, since it uses as much as digits as its factorization.

13529289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509766.

The product of its digits is 38880, while the sum is 39.

The square root of 13529289 is about 3678.2181827619. The cubic root of 13529289 is about 238.2822311528.

The spelling of 13529289 in words is "thirteen million, five hundred twenty-nine thousand, two hundred eighty-nine".