1201800893 has 2 divisors, whose sum is σ = 1201800894. Its totient is φ = 1201800892.

The previous prime is 1201800871. The next prime is 1201800961. The reversal of 1201800893 is 3980081021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1201800889 + 4 = 34667^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201800893 - 2¹⁰ = 1201799869 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201803893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600900446 + 600900447.

It is an arithmetic number, because the mean of its divisors is an integer number (600900447).

Almost surely, 2^1201800893 is an apocalyptic number.

It is an amenable number.

1201800893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201800893 is an equidigital number, since it uses as much as digits as its factorization.

1201800893 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 32.

The square root of 1201800893 is about 34667.0000576918. Note that the first 4 decimals coincide. The cubic root of 1201800893 is about 1063.1898963588.

The spelling of 1201800893 in words is "one billion, two hundred one million, eight hundred thousand, eight hundred ninety-three".