1421216179 has 2 divisors, whose sum is σ = 1421216180. Its totient is φ = 1421216178.

The previous prime is 1421216171. The next prime is 1421216189. The reversal of 1421216179 is 9716121241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421216179 - 2³ = 1421216171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421216171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710608089 + 710608090.

It is an arithmetic number, because the mean of its divisors is an integer number (710608090).

Almost surely, 2^1421216179 is an apocalyptic number.

1421216179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421216179 is an equidigital number, since it uses as much as digits as its factorization.

1421216179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 1421216179 is about 37699.0209289313. The cubic root of 1421216179 is about 1124.3116589843.

The spelling of 1421216179 in words is "one billion, four hundred twenty-one million, two hundred sixteen thousand, one hundred seventy-nine".