12559949 has 2 divisors, whose sum is σ = 12559950. Its totient is φ = 12559948.

The previous prime is 12559933. The next prime is 12559997. The reversal of 12559949 is 94995521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10843849 + 1716100 = 3293^2 + 1310^2 .

It is an emirp because it is prime and its reverse (94995521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12559949 - 2⁴ = 12559933 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 (12559049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6279974 + 6279975.

It is an arithmetic number, because the mean of its divisors is an integer number (6279975).

Almost surely, 2^12559949 is an apocalyptic number.

It is an amenable number.

12559949 is a deficient number, since it is larger than the sum of its proper divisors (1).

12559949 is an equidigital number, since it uses as much as digits as its factorization.

12559949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 44.

The square root of 12559949 is about 3544.0018340853. The cubic root of 12559949 is about 232.4498616208.

The spelling of 12559949 in words is "twelve million, five hundred fifty-nine thousand, nine hundred forty-nine".