1229482379 has 2 divisors, whose sum is σ = 1229482380. Its totient is φ = 1229482378.

The previous prime is 1229482369. The next prime is 1229482391. The reversal of 1229482379 is 9732849221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1229482379 - 2⁸ = 1229482123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1229482349) 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, 614741189 + 614741190.

It is an arithmetic number, because the mean of its divisors is an integer number (614741190).

Almost surely, 2^1229482379 is an apocalyptic number.

1229482379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229482379 is an equidigital number, since it uses as much as digits as its factorization.

1229482379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 1229482379 is about 35063.9755161904. The cubic root of 1229482379 is about 1071.2909503636.

The spelling of 1229482379 in words is "one billion, two hundred twenty-nine million, four hundred eighty-two thousand, three hundred seventy-nine".