13126189 has 2 divisors, whose sum is σ = 13126190. Its totient is φ = 13126188.

The previous prime is 13126181. The next prime is 13126213. The reversal of 13126189 is 98162131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12369289 + 756900 = 3517^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 13126189 - 2³ = 13126181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13126189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13126181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6563094 + 6563095.

It is an arithmetic number, because the mean of its divisors is an integer number (6563095).

Almost surely, 2^13126189 is an apocalyptic number.

It is an amenable number.

13126189 is a deficient number, since it is larger than the sum of its proper divisors (1).

13126189 is an equidigital number, since it uses as much as digits as its factorization.

13126189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 31.

The square root of 13126189 is about 3623.0082804211. The cubic root of 13126189 is about 235.8918217698.

The spelling of 13126189 in words is "thirteen million, one hundred twenty-six thousand, one hundred eighty-nine".