1229124947 has 2 divisors, whose sum is σ = 1229124948. Its totient is φ = 1229124946.

The previous prime is 1229124917. The next prime is 1229124959. The reversal of 1229124947 is 7494219221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1229124947 - 2²⁰ = 1228076371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1229124917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614562473 + 614562474.

It is an arithmetic number, because the mean of its divisors is an integer number (614562474).

Almost surely, 2^1229124947 is an apocalyptic number.

1229124947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229124947 is an equidigital number, since it uses as much as digits as its factorization.

1229124947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 1229124947 is about 35058.8782906698. The cubic root of 1229124947 is about 1071.1871259721.

The spelling of 1229124947 in words is "one billion, two hundred twenty-nine million, one hundred twenty-four thousand, nine hundred forty-seven".