12515189 has 2 divisors, whose sum is σ = 12515190. Its totient is φ = 12515188.

The previous prime is 12515183. The next prime is 12515201. The reversal of 12515189 is 98151521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12460900 + 54289 = 3530^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 12515189 - 2⁸ = 12514933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12515183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6257594 + 6257595.

It is an arithmetic number, because the mean of its divisors is an integer number (6257595).

Almost surely, 2^12515189 is an apocalyptic number.

It is an amenable number.

12515189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12515189 is an equidigital number, since it uses as much as digits as its factorization.

12515189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 32.

The square root of 12515189 is about 3537.6813027745. The cubic root of 12515189 is about 232.1734050890.

The spelling of 12515189 in words is "twelve million, five hundred fifteen thousand, one hundred eighty-nine".