12134989 has 2 divisors, whose sum is σ = 12134990. Its totient is φ = 12134988.

The previous prime is 12134971. The next prime is 12134999. The reversal of 12134989 is 98943121.

12134989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9302500 + 2832489 = 3050^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 12134989 - 2⁹ = 12134477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12134929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067494 + 6067495.

It is an arithmetic number, because the mean of its divisors is an integer number (6067495).

Almost surely, 2^12134989 is an apocalyptic number.

It is an amenable number.

12134989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12134989 is an equidigital number, since it uses as much as digits as its factorization.

12134989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 12134989 is about 3483.5311108127. The cubic root of 12134989 is about 229.7981152210.

The spelling of 12134989 in words is "twelve million, one hundred thirty-four thousand, nine hundred eighty-nine".