1288285667 has 2 divisors, whose sum is σ = 1288285668. Its totient is φ = 1288285666.

The previous prime is 1288285597. The next prime is 1288285679. The reversal of 1288285667 is 7665828821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1288285667 - 2¹² = 1288281571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1288285967) 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, 644142833 + 644142834.

It is an arithmetic number, because the mean of its divisors is an integer number (644142834).

Almost surely, 2^1288285667 is an apocalyptic number.

1288285667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288285667 is an equidigital number, since it uses as much as digits as its factorization.

1288285667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 53.

The square root of 1288285667 is about 35892.6965690793. The cubic root of 1288285667 is about 1088.1047971949.

The spelling of 1288285667 in words is "one billion, two hundred eighty-eight million, two hundred eighty-five thousand, six hundred sixty-seven".