1280463113 has 2 divisors, whose sum is σ = 1280463114. Its totient is φ = 1280463112.

The previous prime is 1280463089. The next prime is 1280463157. The reversal of 1280463113 is 3113640821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1175666944 + 104796169 = 34288^2 + 10237^2 .

It is a cyclic number.

It is not a de Polignac number, because 1280463113 - 2¹² = 1280459017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1280463313) 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, 640231556 + 640231557.

It is an arithmetic number, because the mean of its divisors is an integer number (640231557).

Almost surely, 2^1280463113 is an apocalyptic number.

It is an amenable number.

1280463113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280463113 is an equidigital number, since it uses as much as digits as its factorization.

1280463113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1280463113 is about 35783.5592556135. The cubic root of 1280463113 is about 1085.8979768993.

The spelling of 1280463113 in words is "one billion, two hundred eighty million, four hundred sixty-three thousand, one hundred thirteen".