1311455459 has 2 divisors, whose sum is σ = 1311455460. Its totient is φ = 1311455458.

The previous prime is 1311455447. The next prime is 1311455501. The reversal of 1311455459 is 9545541131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311455459 - 2⁴ = 1311455443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1311455419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655727729 + 655727730.

It is an arithmetic number, because the mean of its divisors is an integer number (655727730).

Almost surely, 2^1311455459 is an apocalyptic number.

1311455459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311455459 is an equidigital number, since it uses as much as digits as its factorization.

1311455459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 38.

The square root of 1311455459 is about 36214.0229607261. The cubic root of 1311455459 is about 1094.5892578998.

The spelling of 1311455459 in words is "one billion, three hundred eleven million, four hundred fifty-five thousand, four hundred fifty-nine".