1229679179 has 2 divisors, whose sum is σ = 1229679180. Its totient is φ = 1229679178.

The previous prime is 1229679163. The next prime is 1229679193. The reversal of 1229679179 is 9719769221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1229679179 - 2⁴ = 1229679163 is a prime.

It is a super-2 number, since 2×1229679179² = 3024221766532228082, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1229679179.

It is not a weakly prime, because it can be changed into another prime (1229679119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614839589 + 614839590.

It is an arithmetic number, because the mean of its divisors is an integer number (614839590).

Almost surely, 2^1229679179 is an apocalyptic number.

1229679179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229679179 is an equidigital number, since it uses as much as digits as its factorization.

1229679179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 53.

The square root of 1229679179 is about 35066.7817029165. The cubic root of 1229679179 is about 1071.3481068859.

The spelling of 1229679179 in words is "one billion, two hundred twenty-nine million, six hundred seventy-nine thousand, one hundred seventy-nine".