1288190263 has 2 divisors, whose sum is σ = 1288190264. Its totient is φ = 1288190262.

The previous prime is 1288190219. The next prime is 1288190311. The reversal of 1288190263 is 3620918821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1288190263 - 2²⁵ = 1254635831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1288190363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644095131 + 644095132.

It is an arithmetic number, because the mean of its divisors is an integer number (644095132).

Almost surely, 2^1288190263 is an apocalyptic number.

1288190263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288190263 is an equidigital number, since it uses as much as digits as its factorization.

1288190263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 1288190263 is about 35891.3675275825. The cubic root of 1288190263 is about 1088.0779366636.

The spelling of 1288190263 in words is "one billion, two hundred eighty-eight million, one hundred ninety thousand, two hundred sixty-three".