12123959 has 2 divisors, whose sum is σ = 12123960. Its totient is φ = 12123958.

The previous prime is 12123953. The next prime is 12123977. The reversal of 12123959 is 95932121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061979 + 6061980.

It is an arithmetic number, because the mean of its divisors is an integer number (6061980).

Almost surely, 2^12123959 is an apocalyptic number.

12123959 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123959 is an equidigital number, since it uses as much as digits as its factorization.

12123959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 32.

The square root of 12123959 is about 3481.9475871989. The cubic root of 12123959 is about 229.7284697368.

The spelling of 12123959 in words is "twelve million, one hundred twenty-three thousand, nine hundred fifty-nine".