13115189 has 4 divisors (see below), whose sum is σ = 13130124. Its totient is φ = 13100256.

The previous prime is 13115173. The next prime is 13115197. The reversal of 13115189 is 98151131.

13115189 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3034564 + 10080625 = 1742^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 13115189 - 2⁴ = 13115173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13115489) 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, 6062 + ... + 7935.

It is an arithmetic number, because the mean of its divisors is an integer number (3282531).

Almost surely, 2^13115189 is an apocalyptic number.

It is an amenable number.

13115189 is a deficient number, since it is larger than the sum of its proper divisors (14935).

13115189 is an equidigital number, since it uses as much as digits as its factorization.

13115189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14934.

The product of its digits is 1080, while the sum is 29.

The square root of 13115189 is about 3621.4898867731. The cubic root of 13115189 is about 235.8259093863.

The spelling of 13115189 in words is "thirteen million, one hundred fifteen thousand, one hundred eighty-nine".