1280463105 has 16 divisors (see below), whose sum is σ = 2156569920. Its totient is φ = 646970688.

The previous prime is 1280463089. The next prime is 1280463113. The reversal of 1280463105 is 5013640821.

It is not a de Polignac number, because 1280463105 - 2⁴ = 1280463089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2246142 + ... + 2246711.

It is an arithmetic number, because the mean of its divisors is an integer number (134785620).

Almost surely, 2^1280463105 is an apocalyptic number.

1280463105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1280463105 is a deficient number, since it is larger than the sum of its proper divisors (876106815).

1280463105 is a wasteful number, since it uses less digits than its factorization.

1280463105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492880.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1280463105 is about 35783.5591438303. The cubic root of 1280463105 is about 1085.8979746379.

The spelling of 1280463105 in words is "one billion, two hundred eighty million, four hundred sixty-three thousand, one hundred five".