1280348833 has 2 divisors, whose sum is σ = 1280348834. Its totient is φ = 1280348832.

The previous prime is 1280348831. The next prime is 1280348903. The reversal of 1280348833 is 3388430821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1225840144 + 54508689 = 35012^2 + 7383^2 .

It is a cyclic number.

It is not a de Polignac number, because 1280348833 - 2¹ = 1280348831 is a prime.

Together with 1280348831, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1280348831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640174416 + 640174417.

It is an arithmetic number, because the mean of its divisors is an integer number (640174417).

Almost surely, 2^1280348833 is an apocalyptic number.

It is an amenable number.

1280348833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280348833 is an equidigital number, since it uses as much as digits as its factorization.

1280348833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 1280348833 is about 35781.9623972750. The cubic root of 1280348833 is about 1085.8656708502.

The spelling of 1280348833 in words is "one billion, two hundred eighty million, three hundred forty-eight thousand, eight hundred thirty-three".