1106819789 has 2 divisors, whose sum is σ = 1106819790. Its totient is φ = 1106819788.

The previous prime is 1106819737. The next prime is 1106819797. The reversal of 1106819789 is 9879186011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820364164 + 286455625 = 28642^2 + 16925^2 .

It is a cyclic number.

It is not a de Polignac number, because 1106819789 - 2¹² = 1106815693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1106819719) by changing a digit.

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 as a sum of consecutive naturals, namely, 553409894 + 553409895.

It is an arithmetic number, because the mean of its divisors is an integer number (553409895).

Almost surely, 2^1106819789 is an apocalyptic number.

It is an amenable number.

1106819789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1106819789 is an equidigital number, since it uses as much as digits as its factorization.

1106819789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 50.

The square root of 1106819789 is about 33268.9012292261. The cubic root of 1106819789 is about 1034.4090347706.

The spelling of 1106819789 in words is "one billion, one hundred six million, eight hundred nineteen thousand, seven hundred eighty-nine".