12123589 has 2 divisors, whose sum is σ = 12123590. Its totient is φ = 12123588.

The previous prime is 12123571. The next prime is 12123607. The reversal of 12123589 is 98532121.

It is a balanced prime because it is at equal distance from previous prime (12123571) and next prime (12123607).

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 2772225 = 3058^2 + 1665^2 .

It is an emirp because it is prime and its reverse (98532121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12123589 - 2⁵ = 12123557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12123589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061794 + 6061795.

It is an arithmetic number, because the mean of its divisors is an integer number (6061795).

Almost surely, 2^12123589 is an apocalyptic number.

It is an amenable number.

12123589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123589 is an equidigital number, since it uses as much as digits as its factorization.

12123589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 12123589 is about 3481.8944556089. The cubic root of 12123589 is about 229.7261327554.

The spelling of 12123589 in words is "twelve million, one hundred twenty-three thousand, five hundred eighty-nine".