1280885201 has 2 divisors, whose sum is σ = 1280885202. Its totient is φ = 1280885200.

The previous prime is 1280885159. The next prime is 1280885251. The reversal of 1280885201 is 1025880821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1165881025 + 115004176 = 34145^2 + 10724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1280885201 - 2¹⁴ = 1280868817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1280885251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640442600 + 640442601.

It is an arithmetic number, because the mean of its divisors is an integer number (640442601).

Almost surely, 2^1280885201 is an apocalyptic number.

It is an amenable number.

1280885201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280885201 is an equidigital number, since it uses as much as digits as its factorization.

1280885201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 35.

The square root of 1280885201 is about 35789.4565619541. The cubic root of 1280885201 is about 1086.0172811696.

The spelling of 1280885201 in words is "one billion, two hundred eighty million, eight hundred eighty-five thousand, two hundred one".