13065889 has 4 divisors (see below), whose sum is σ = 13231360. Its totient is φ = 12900420.

The previous prime is 13065883. The next prime is 13065919. The reversal of 13065889 is 98856031.

It is a happy number.

13065889 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 13065889 - 2³ = 13065881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13065881) 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, 82617 + ... + 82774.

It is an arithmetic number, because the mean of its divisors is an integer number (3307840).

Almost surely, 2^13065889 is an apocalyptic number.

It is an amenable number.

13065889 is a deficient number, since it is larger than the sum of its proper divisors (165471).

13065889 is an equidigital number, since it uses as much as digits as its factorization.

13065889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165470.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 13065889 is about 3614.6768873580. The cubic root of 13065889 is about 235.5300484706.

The spelling of 13065889 in words is "thirteen million, sixty-five thousand, eight hundred eighty-nine".