2105943277 has 2 divisors, whose sum is σ = 2105943278. Its totient is φ = 2105943276.

The previous prime is 2105943251. The next prime is 2105943349. The reversal of 2105943277 is 7723495012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1452067236 + 653876041 = 38106^2 + 25571^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105943277 - 2²⁷ = 1971725549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105943247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052971638 + 1052971639.

It is an arithmetic number, because the mean of its divisors is an integer number (1052971639).

Almost surely, 2^2105943277 is an apocalyptic number.

It is an amenable number.

2105943277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105943277 is an equidigital number, since it uses as much as digits as its factorization.

2105943277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 2105943277 is about 45890.5576017551. The cubic root of 2105943277 is about 1281.7860964280.

The spelling of 2105943277 in words is "two billion, one hundred five million, nine hundred forty-three thousand, two hundred seventy-seven".