1320755593 has 2 divisors, whose sum is σ = 1320755594. Its totient is φ = 1320755592.

The previous prime is 1320755587. The next prime is 1320755599. The reversal of 1320755593 is 3955570231.

It is a balanced prime because it is at equal distance from previous prime (1320755587) and next prime (1320755599).

It can be written as a sum of positive squares in only one way, i.e., 844948624 + 475806969 = 29068^2 + 21813^2 .

It is an emirp because it is prime and its reverse (3955570231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320755593 - 2¹³ = 1320747401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320755599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660377796 + 660377797.

It is an arithmetic number, because the mean of its divisors is an integer number (660377797).

Almost surely, 2^1320755593 is an apocalyptic number.

It is an amenable number.

1320755593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320755593 is an equidigital number, since it uses as much as digits as its factorization.

1320755593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 1320755593 is about 36342.2012679474. The cubic root of 1320755593 is about 1097.1705777054.

The spelling of 1320755593 in words is "one billion, three hundred twenty million, seven hundred fifty-five thousand, five hundred ninety-three".