1283264205 has 16 divisors (see below), whose sum is σ = 2053733184. Its totient is φ = 684237440.

The previous prime is 1283264197. The next prime is 1283264221. The reversal of 1283264205 is 5024623821.

It is not a de Polignac number, because 1283264205 - 2³ = 1283264197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72865 + ... + 88745.

It is an arithmetic number, because the mean of its divisors is an integer number (128358324).

Almost surely, 2^1283264205 is an apocalyptic number.

1283264205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1283264205 is a deficient number, since it is larger than the sum of its proper divisors (770468979).

1283264205 is a wasteful number, since it uses less digits than its factorization.

1283264205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21276.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1283264205 is about 35822.6772450078. The cubic root of 1283264205 is about 1086.6892231361.

The spelling of 1283264205 in words is "one billion, two hundred eighty-three million, two hundred sixty-four thousand, two hundred five".