1311067487 has 2 divisors, whose sum is σ = 1311067488. Its totient is φ = 1311067486.

The previous prime is 1311067481. The next prime is 1311067493. The reversal of 1311067487 is 7847601131.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1311067481) and next prime (1311067493).

It is an emirp because it is prime and its reverse (7847601131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311067487 - 2⁸ = 1311067231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1311067487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311067481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655533743 + 655533744.

It is an arithmetic number, because the mean of its divisors is an integer number (655533744).

Almost surely, 2^1311067487 is an apocalyptic number.

1311067487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311067487 is an equidigital number, since it uses as much as digits as its factorization.

1311067487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 1311067487 is about 36208.6659102486. The cubic root of 1311067487 is about 1094.4813086580.

The spelling of 1311067487 in words is "one billion, three hundred eleven million, sixty-seven thousand, four hundred eighty-seven".