2105054771 has 2 divisors, whose sum is σ = 2105054772. Its totient is φ = 2105054770.

The previous prime is 2105054741. The next prime is 2105054773. The reversal of 2105054771 is 1774505012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2105054771 - 2¹⁴ = 2105038387 is a prime.

Together with 2105054773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2105054773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052527385 + 1052527386.

It is an arithmetic number, because the mean of its divisors is an integer number (1052527386).

Almost surely, 2^2105054771 is an apocalyptic number.

2105054771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105054771 is an equidigital number, since it uses as much as digits as its factorization.

2105054771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 2105054771 is about 45880.8758743771. The cubic root of 2105054771 is about 1281.6058074885.

Adding to 2105054771 its reverse (1774505012), we get a palindrome (3879559783).

The spelling of 2105054771 in words is "two billion, one hundred five million, fifty-four thousand, seven hundred seventy-one".