1328302289 has 2 divisors, whose sum is σ = 1328302290. Its totient is φ = 1328302288.

The previous prime is 1328302249. The next prime is 1328302301. The reversal of 1328302289 is 9822038231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1323722689 + 4579600 = 36383^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328302289 - 2²⁴ = 1311525073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328302249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664151144 + 664151145.

It is an arithmetic number, because the mean of its divisors is an integer number (664151145).

Almost surely, 2^1328302289 is an apocalyptic number.

It is an amenable number.

1328302289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328302289 is an equidigital number, since it uses as much as digits as its factorization.

1328302289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1328302289 is about 36445.8816466278. The cubic root of 1328302289 is about 1099.2563262656.

The spelling of 1328302289 in words is "one billion, three hundred twenty-eight million, three hundred two thousand, two hundred eighty-nine".