12942179 has 2 divisors, whose sum is σ = 12942180. Its totient is φ = 12942178.

The previous prime is 12942121. The next prime is 12942197. The reversal of 12942179 is 97124921.

Together with next prime (12942197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (97124921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12942179 - 2⁸ = 12941923 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12942109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6471089 + 6471090.

It is an arithmetic number, because the mean of its divisors is an integer number (6471090).

Almost surely, 2^12942179 is an apocalyptic number.

12942179 is a deficient number, since it is larger than the sum of its proper divisors (1).

12942179 is an equidigital number, since it uses as much as digits as its factorization.

12942179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 12942179 is about 3597.5240096489. The cubic root of 12942179 is about 234.7843441816.

The spelling of 12942179 in words is "twelve million, nine hundred forty-two thousand, one hundred seventy-nine".