1280808127 has 2 divisors, whose sum is σ = 1280808128. Its totient is φ = 1280808126.

The previous prime is 1280808047. The next prime is 1280808163. The reversal of 1280808127 is 7218080821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1280808127 - 2¹⁹ = 1280283839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1280808227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640404063 + 640404064.

It is an arithmetic number, because the mean of its divisors is an integer number (640404064).

Almost surely, 2^1280808127 is an apocalyptic number.

1280808127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280808127 is an equidigital number, since it uses as much as digits as its factorization.

1280808127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 1280808127 is about 35788.3797761229. The cubic root of 1280808127 is about 1085.9954979594.

Adding to 1280808127 its reverse (7218080821), we get a palindrome (8498888948).

The spelling of 1280808127 in words is "one billion, two hundred eighty million, eight hundred eight thousand, one hundred twenty-seven".