1329152749 has 2 divisors, whose sum is σ = 1329152750. Its totient is φ = 1329152748.

The previous prime is 1329152689. The next prime is 1329152777. The reversal of 1329152749 is 9472519231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1327509225 + 1643524 = 36435^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329152749 - 2¹⁹ = 1328628461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1329152779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664576374 + 664576375.

It is an arithmetic number, because the mean of its divisors is an integer number (664576375).

Almost surely, 2^1329152749 is an apocalyptic number.

It is an amenable number.

1329152749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329152749 is an equidigital number, since it uses as much as digits as its factorization.

1329152749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 1329152749 is about 36457.5472159058. The cubic root of 1329152749 is about 1099.4908798239.

The spelling of 1329152749 in words is "one billion, three hundred twenty-nine million, one hundred fifty-two thousand, seven hundred forty-nine".