1313513287 has 2 divisors, whose sum is σ = 1313513288. Its totient is φ = 1313513286.

The previous prime is 1313513251. The next prime is 1313513323. The reversal of 1313513287 is 7823153131.

It is a balanced prime because it is at equal distance from previous prime (1313513251) and next prime (1313513323).

It is a cyclic number.

It is not a de Polignac number, because 1313513287 - 2²³ = 1305124679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313513207) 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, 656756643 + 656756644.

It is an arithmetic number, because the mean of its divisors is an integer number (656756644).

Almost surely, 2^1313513287 is an apocalyptic number.

1313513287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313513287 is an equidigital number, since it uses as much as digits as its factorization.

1313513287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 1313513287 is about 36242.4238565800. The cubic root of 1313513287 is about 1095.1614718474.

The spelling of 1313513287 in words is "one billion, three hundred thirteen million, five hundred thirteen thousand, two hundred eighty-seven".