1311567139 has 2 divisors, whose sum is σ = 1311567140. Its totient is φ = 1311567138.

The previous prime is 1311567133. The next prime is 1311567151. The reversal of 1311567139 is 9317651131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311567139 - 2⁵ = 1311567107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311567098 and 1311567107.

It is not a weakly prime, because it can be changed into another prime (1311567133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655783569 + 655783570.

It is an arithmetic number, because the mean of its divisors is an integer number (655783570).

Almost surely, 2^1311567139 is an apocalyptic number.

1311567139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311567139 is an equidigital number, since it uses as much as digits as its factorization.

1311567139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 37.

The square root of 1311567139 is about 36215.5648720271. The cubic root of 1311567139 is about 1094.6203277715.

The spelling of 1311567139 in words is "one billion, three hundred eleven million, five hundred sixty-seven thousand, one hundred thirty-nine".