1286313263 has 2 divisors, whose sum is σ = 1286313264. Its totient is φ = 1286313262.

The previous prime is 1286313257. The next prime is 1286313307. The reversal of 1286313263 is 3623136821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1286313263 - 2⁶ = 1286313199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1286313463) 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, 643156631 + 643156632.

It is an arithmetic number, because the mean of its divisors is an integer number (643156632).

Almost surely, 2^1286313263 is an apocalyptic number.

1286313263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1286313263 is an equidigital number, since it uses as much as digits as its factorization.

1286313263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 1286313263 is about 35865.2096466757. The cubic root of 1286313263 is about 1087.5492065285.

The spelling of 1286313263 in words is "one billion, two hundred eighty-six million, three hundred thirteen thousand, two hundred sixty-three".