13231189 has 2 divisors, whose sum is σ = 13231190. Its totient is φ = 13231188.

The previous prime is 13231171. The next prime is 13231247. The reversal of 13231189 is 98113231.

13231189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13176900 + 54289 = 3630^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231189 - 2⁷ = 13231061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615594 + 6615595.

It is an arithmetic number, because the mean of its divisors is an integer number (6615595).

Almost surely, 2^13231189 is an apocalyptic number.

It is an amenable number.

13231189 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231189 is an equidigital number, since it uses as much as digits as its factorization.

13231189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 13231189 is about 3637.4701373345. The cubic root of 13231189 is about 236.5191399123.

The spelling of 13231189 in words is "thirteen million, two hundred thirty-one thousand, one hundred eighty-nine".