1229613841 has 2 divisors, whose sum is σ = 1229613842. Its totient is φ = 1229613840.

The previous prime is 1229613839. The next prime is 1229613851. The reversal of 1229613841 is 1483169221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 676000000 + 553613841 = 26000^2 + 23529^2 .

It is an emirp because it is prime and its reverse (1483169221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1229613841 - 2¹ = 1229613839 is a prime.

Together with 1229613839, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1229613841.

It is not a weakly prime, because it can be changed into another prime (1229613851) 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, 614806920 + 614806921.

It is an arithmetic number, because the mean of its divisors is an integer number (614806921).

Almost surely, 2^1229613841 is an apocalyptic number.

It is an amenable number.

1229613841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229613841 is an equidigital number, since it uses as much as digits as its factorization.

1229613841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 1229613841 is about 35065.8500681218. The cubic root of 1229613841 is about 1071.3291314806.

The spelling of 1229613841 in words is "one billion, two hundred twenty-nine million, six hundred thirteen thousand, eight hundred forty-one".