2105544241 has 2 divisors, whose sum is σ = 2105544242. Its totient is φ = 2105544240.

The previous prime is 2105544239. The next prime is 2105544247. The reversal of 2105544241 is 1424455012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1419104241 + 686440000 = 37671^2 + 26200^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105544241 - 2¹ = 2105544239 is a prime.

Together with 2105544239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2105544247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052772120 + 1052772121.

It is an arithmetic number, because the mean of its divisors is an integer number (1052772121).

Almost surely, 2^2105544241 is an apocalyptic number.

It is an amenable number.

2105544241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105544241 is an equidigital number, since it uses as much as digits as its factorization.

2105544241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 2105544241 is about 45886.2097040058. The cubic root of 2105544241 is about 1281.7051333253.

Adding to 2105544241 its reverse (1424455012), we get a palindrome (3529999253).

The spelling of 2105544241 in words is "two billion, one hundred five million, five hundred forty-four thousand, two hundred forty-one".