2116843237 has 2 divisors, whose sum is σ = 2116843238. Its totient is φ = 2116843236.

The previous prime is 2116843231. The next prime is 2116843291. The reversal of 2116843237 is 7323486112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1737139041 + 379704196 = 41679^2 + 19486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116843237 - 2¹⁵ = 2116810469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2116843196 and 2116843205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116843231) 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, 1058421618 + 1058421619.

It is an arithmetic number, because the mean of its divisors is an integer number (1058421619).

Almost surely, 2^2116843237 is an apocalyptic number.

It is an amenable number.

2116843237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116843237 is an equidigital number, since it uses as much as digits as its factorization.

2116843237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 2116843237 is about 46009.1647066104. The cubic root of 2116843237 is about 1283.9937186913.

The spelling of 2116843237 in words is "two billion, one hundred sixteen million, eight hundred forty-three thousand, two hundred thirty-seven".