1311459263 has 2 divisors, whose sum is σ = 1311459264. Its totient is φ = 1311459262.

The previous prime is 1311459239. The next prime is 1311459293. The reversal of 1311459263 is 3629541131.

It is a weak prime.

It is an emirp because it is prime and its reverse (3629541131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311459263 - 2²⁶ = 1244350399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311459223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655729631 + 655729632.

It is an arithmetic number, because the mean of its divisors is an integer number (655729632).

Almost surely, 2^1311459263 is an apocalyptic number.

1311459263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311459263 is an equidigital number, since it uses as much as digits as its factorization.

1311459263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 1311459263 is about 36214.0754817792. The cubic root of 1311459263 is about 1094.5903162185.

The spelling of 1311459263 in words is "one billion, three hundred eleven million, four hundred fifty-nine thousand, two hundred sixty-three".