1328286539 has 2 divisors, whose sum is σ = 1328286540. Its totient is φ = 1328286538.

The previous prime is 1328286503. The next prime is 1328286541. The reversal of 1328286539 is 9356828231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1328286539 - 2¹² = 1328282443 is a prime.

Together with 1328286541, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1328286493 and 1328286502.

It is not a weakly prime, because it can be changed into another prime (1328280539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664143269 + 664143270.

It is an arithmetic number, because the mean of its divisors is an integer number (664143270).

Almost surely, 2^1328286539 is an apocalyptic number.

1328286539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328286539 is an equidigital number, since it uses as much as digits as its factorization.

1328286539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 1328286539 is about 36445.6655721912. The cubic root of 1328286539 is about 1099.2519815328.

The spelling of 1328286539 in words is "one billion, three hundred twenty-eight million, two hundred eighty-six thousand, five hundred thirty-nine".