12279313 has 2 divisors, whose sum is σ = 12279314. Its totient is φ = 12279312.

The previous prime is 12279299. The next prime is 12279341. The reversal of 12279313 is 31397221.

12279313 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12279341) can be obtained adding 12279313 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6671889 + 5607424 = 2583^2 + 2368^2 .

It is an emirp because it is prime and its reverse (31397221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12279313 - 2⁹ = 12278801 is a prime.

It is not a weakly prime, because it can be changed into another prime (12279353) 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, 6139656 + 6139657.

It is an arithmetic number, because the mean of its divisors is an integer number (6139657).

Almost surely, 2^12279313 is an apocalyptic number.

It is an amenable number.

12279313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12279313 is an equidigital number, since it uses as much as digits as its factorization.

12279313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 12279313 is about 3504.1850693135. The cubic root of 12279313 is about 230.7055398621.

The spelling of 12279313 in words is "twelve million, two hundred seventy-nine thousand, three hundred thirteen".