13491589 has 8 divisors (see below), whose sum is σ = 13929120. Its totient is φ = 13061136.

The previous prime is 13491587. The next prime is 13491601. The reversal of 13491589 is 98519431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13491589 - 2¹ = 13491587 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 (13491581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2247 + ... + 5659.

It is an arithmetic number, because the mean of its divisors is an integer number (1741140).

Almost surely, 2^13491589 is an apocalyptic number.

It is an amenable number.

13491589 is a deficient number, since it is larger than the sum of its proper divisors (437531).

13491589 is an equidigital number, since it uses as much as digits as its factorization.

13491589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539.

The product of its digits is 38880, while the sum is 40.

The square root of 13491589 is about 3673.0898437147. The cubic root of 13491589 is about 238.0606970394.

The spelling of 13491589 in words is "thirteen million, four hundred ninety-one thousand, five hundred eighty-nine".