1320353539 has 2 divisors, whose sum is σ = 1320353540. Its totient is φ = 1320353538.

The previous prime is 1320353509. The next prime is 1320353591. The reversal of 1320353539 is 9353530231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320353539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320353509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660176769 + 660176770.

It is an arithmetic number, because the mean of its divisors is an integer number (660176770).

Almost surely, 2^1320353539 is an apocalyptic number.

1320353539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320353539 is an equidigital number, since it uses as much as digits as its factorization.

1320353539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 34.

The square root of 1320353539 is about 36336.6693437910. The cubic root of 1320353539 is about 1097.0592357356.

The spelling of 1320353539 in words is "one billion, three hundred twenty million, three hundred fifty-three thousand, five hundred thirty-nine".