13591189 has 4 divisors (see below), whose sum is σ = 13600224. Its totient is φ = 13582156.

The previous prime is 13591157. The next prime is 13591217. The reversal of 13591189 is 98119531.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13591189 - 2⁵ = 13591157 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 (13591489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657 + ... + 5470.

It is an arithmetic number, because the mean of its divisors is an integer number (3400056).

Almost surely, 2^13591189 is an apocalyptic number.

It is an amenable number.

13591189 is a deficient number, since it is larger than the sum of its proper divisors (9035).

13591189 is an equidigital number, since it uses as much as digits as its factorization.

13591189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9034.

The product of its digits is 9720, while the sum is 37.

The square root of 13591189 is about 3686.6229804524. The cubic root of 13591189 is about 238.6450793062.

The spelling of 13591189 in words is "thirteen million, five hundred ninety-one thousand, one hundred eighty-nine".