1311006539 has 2 divisors, whose sum is σ = 1311006540. Its totient is φ = 1311006538.

The previous prime is 1311006503. The next prime is 1311006553. The reversal of 1311006539 is 9356001131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311006539 - 2²⁰ = 1309957963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311006559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655503269 + 655503270.

It is an arithmetic number, because the mean of its divisors is an integer number (655503270).

Almost surely, 2^1311006539 is an apocalyptic number.

1311006539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311006539 is an equidigital number, since it uses as much as digits as its factorization.

1311006539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 1311006539 is about 36207.8242787384. The cubic root of 1311006539 is about 1094.4643485647.

The spelling of 1311006539 in words is "one billion, three hundred eleven million, six thousand, five hundred thirty-nine".