1229555713 has 2 divisors, whose sum is σ = 1229555714. Its totient is φ = 1229555712.

The previous prime is 1229555699. The next prime is 1229555729. The reversal of 1229555713 is 3175559221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 977000049 + 252555664 = 31257^2 + 15892^2 .

It is an emirp because it is prime and its reverse (3175559221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1229555713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1229555773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614777856 + 614777857.

It is an arithmetic number, because the mean of its divisors is an integer number (614777857).

Almost surely, 2^1229555713 is an apocalyptic number.

It is an amenable number.

1229555713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229555713 is an equidigital number, since it uses as much as digits as its factorization.

1229555713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 40.

The square root of 1229555713 is about 35065.0212177321. The cubic root of 1229555713 is about 1071.3122494322.

The spelling of 1229555713 in words is "one billion, two hundred twenty-nine million, five hundred fifty-five thousand, seven hundred thirteen".