2181913183 has 2 divisors, whose sum is σ = 2181913184. Its totient is φ = 2181913182.

The previous prime is 2181913177. The next prime is 2181913243. The reversal of 2181913183 is 3813191812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2181913183 - 2¹⁷ = 2181782111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2181913103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090956591 + 1090956592.

It is an arithmetic number, because the mean of its divisors is an integer number (1090956592).

Almost surely, 2^2181913183 is an apocalyptic number.

2181913183 is a deficient number, since it is larger than the sum of its proper divisors (1).

2181913183 is an equidigital number, since it uses as much as digits as its factorization.

2181913183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 37.

The square root of 2181913183 is about 46710.9535655182. The cubic root of 2181913183 is about 1297.0174589511.

The spelling of 2181913183 in words is "two billion, one hundred eighty-one million, nine hundred thirteen thousand, one hundred eighty-three".