2189413813 has 2 divisors, whose sum is σ = 2189413814. Its totient is φ = 2189413812.

The previous prime is 2189413789. The next prime is 2189413903. The reversal of 2189413813 is 3183149812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1547399569 + 642014244 = 39337^2 + 25338^2 .

It is a cyclic number.

It is not a de Polignac number, because 2189413813 - 2²¹ = 2187316661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2189411813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094706906 + 1094706907.

It is an arithmetic number, because the mean of its divisors is an integer number (1094706907).

Almost surely, 2^2189413813 is an apocalyptic number.

It is an amenable number.

2189413813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189413813 is an equidigital number, since it uses as much as digits as its factorization.

2189413813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 2189413813 is about 46791.1723832605. The cubic root of 2189413813 is about 1298.5019851227.

The spelling of 2189413813 in words is "two billion, one hundred eighty-nine million, four hundred thirteen thousand, eight hundred thirteen".