13381589 has 6 divisors (see below), whose sum is σ = 14490306. Its totient is φ = 12352080.

The previous prime is 13381549. The next prime is 13381597. The reversal of 13381589 is 98518331.

It can be written as a sum of positive squares in 3 ways, for example, as 625 + 13380964 = 25^2 + 3658^2 .

It is not a de Polignac number, because 13381589 - 2¹⁶ = 13316053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13381549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39422 + ... + 39759.

It is an arithmetic number, because the mean of its divisors is an integer number (2415051).

Almost surely, 2^13381589 is an apocalyptic number.

It is an amenable number.

13381589 is a deficient number, since it is larger than the sum of its proper divisors (1108717).

13381589 is an equidigital number, since it uses as much as digits as its factorization.

13381589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79207 (or 79194 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 13381589 is about 3658.0854281987. The cubic root of 13381589 is about 237.4119429787.

The spelling of 13381589 in words is "thirteen million, three hundred eighty-one thousand, five hundred eighty-nine".