12965189 has 2 divisors, whose sum is σ = 12965190. Its totient is φ = 12965188.

The previous prime is 12965177. The next prime is 12965209. The reversal of 12965189 is 98156921.

It is a happy number.

12965189 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., 7480225 + 5484964 = 2735^2 + 2342^2 .

It is a cyclic number.

It is not a de Polignac number, because 12965189 - 2¹² = 12961093 is a prime.

It is a super-2 number, since 2×12965189² = 336192251611442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12965129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6482594 + 6482595.

It is an arithmetic number, because the mean of its divisors is an integer number (6482595).

Almost surely, 2^12965189 is an apocalyptic number.

It is an amenable number.

12965189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12965189 is an equidigital number, since it uses as much as digits as its factorization.

12965189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 41.

The square root of 12965189 is about 3600.7206223199. The cubic root of 12965189 is about 234.9234034356.

The spelling of 12965189 in words is "twelve million, nine hundred sixty-five thousand, one hundred eighty-nine".