2105227049 has 2 divisors, whose sum is σ = 2105227050. Its totient is φ = 2105227048.

The previous prime is 2105227043. The next prime is 2105227063. The reversal of 2105227049 is 9407225012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1813056400 + 292170649 = 42580^2 + 17093^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105227049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2105227043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052613524 + 1052613525.

It is an arithmetic number, because the mean of its divisors is an integer number (1052613525).

Almost surely, 2^2105227049 is an apocalyptic number.

It is an amenable number.

2105227049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105227049 is an equidigital number, since it uses as much as digits as its factorization.

2105227049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 2105227049 is about 45882.7532848673. The cubic root of 2105227049 is about 1281.6407688056.

The spelling of 2105227049 in words is "two billion, one hundred five million, two hundred twenty-seven thousand, forty-nine".