1329241799 has 2 divisors, whose sum is σ = 1329241800. Its totient is φ = 1329241798.

The previous prime is 1329241769. The next prime is 1329241801. The reversal of 1329241799 is 9971429231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1329241799 is a prime.

It is a Sophie Germain prime.

Together with 1329241801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1329241769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664620899 + 664620900.

It is an arithmetic number, because the mean of its divisors is an integer number (664620900).

Almost surely, 2^1329241799 is an apocalyptic number.

1329241799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329241799 is an equidigital number, since it uses as much as digits as its factorization.

1329241799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The square root of 1329241799 is about 36458.7684789270. The cubic root of 1329241799 is about 1099.5154336801.

The spelling of 1329241799 in words is "one billion, three hundred twenty-nine million, two hundred forty-one thousand, seven hundred ninety-nine".