12279959 has 2 divisors, whose sum is σ = 12279960. Its totient is φ = 12279958.

The previous prime is 12279919. The next prime is 12279973. The reversal of 12279959 is 95997221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12279959 - 2⁸ = 12279703 is a prime.

It is a Sophie Germain 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 (12279919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6139979 + 6139980.

It is an arithmetic number, because the mean of its divisors is an integer number (6139980).

Almost surely, 2^12279959 is an apocalyptic number.

12279959 is a deficient number, since it is larger than the sum of its proper divisors (1).

12279959 is an equidigital number, since it uses as much as digits as its factorization.

12279959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 44.

The square root of 12279959 is about 3504.2772435982. The cubic root of 12279959 is about 230.7095855055.

The spelling of 12279959 in words is "twelve million, two hundred seventy-nine thousand, nine hundred fifty-nine".