12249379 has 2 divisors, whose sum is σ = 12249380. Its totient is φ = 12249378.

The previous prime is 12249373. The next prime is 12249383. The reversal of 12249379 is 97394221.

It is a strong prime.

It is an emirp because it is prime and its reverse (97394221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12249379 - 2⁹ = 12248867 is a prime.

It is not a weakly prime, because it can be changed into another prime (12249373) 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, 6124689 + 6124690.

It is an arithmetic number, because the mean of its divisors is an integer number (6124690).

Almost surely, 2^12249379 is an apocalyptic number.

12249379 is a deficient number, since it is larger than the sum of its proper divisors (1).

12249379 is an equidigital number, since it uses as much as digits as its factorization.

12249379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 12249379 is about 3499.9112845899. The cubic root of 12249379 is about 230.5179191889.

The spelling of 12249379 in words is "twelve million, two hundred forty-nine thousand, three hundred seventy-nine".