1329832481 has 2 divisors, whose sum is σ = 1329832482. Its totient is φ = 1329832480.

The previous prime is 1329832453. The next prime is 1329832573. The reversal of 1329832481 is 1842389231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805651456 + 524181025 = 28384^2 + 22895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329832481 - 2¹⁴ = 1329816097 is a prime.

It is a super-2 number, since 2×1329832481² = 3536908855045230722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1329832081) 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, 664916240 + 664916241.

It is an arithmetic number, because the mean of its divisors is an integer number (664916241).

Almost surely, 2^1329832481 is an apocalyptic number.

It is an amenable number.

1329832481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329832481 is an equidigital number, since it uses as much as digits as its factorization.

1329832481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 1329832481 is about 36466.8682642203. The cubic root of 1329832481 is about 1099.6782753336.

The spelling of 1329832481 in words is "one billion, three hundred twenty-nine million, eight hundred thirty-two thousand, four hundred eighty-one".