1288285967 has 2 divisors, whose sum is σ = 1288285968. Its totient is φ = 1288285966.

The previous prime is 1288285963. The next prime is 1288285981. The reversal of 1288285967 is 7695828821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1288285967 - 2² = 1288285963 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1288285961) 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, 644142983 + 644142984.

It is an arithmetic number, because the mean of its divisors is an integer number (644142984).

Almost surely, 2^1288285967 is an apocalyptic number.

1288285967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288285967 is an equidigital number, since it uses as much as digits as its factorization.

1288285967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 56.

The square root of 1288285967 is about 35892.7007482023. The cubic root of 1288285967 is about 1088.1048816564.

The spelling of 1288285967 in words is "one billion, two hundred eighty-eight million, two hundred eighty-five thousand, nine hundred sixty-seven".