2105264389 has 2 divisors, whose sum is σ = 2105264390. Its totient is φ = 2105264388.

The previous prime is 2105264383. The next prime is 2105264407. The reversal of 2105264389 is 9834625012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2092605025 + 12659364 = 45745^2 + 3558^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105264389 - 2⁷ = 2105264261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105264383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052632194 + 1052632195.

It is an arithmetic number, because the mean of its divisors is an integer number (1052632195).

Almost surely, 2^2105264389 is an apocalyptic number.

It is an amenable number.

2105264389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105264389 is an equidigital number, since it uses as much as digits as its factorization.

2105264389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2105264389 is about 45883.1601897690. The cubic root of 2105264389 is about 1281.6483461646.

The spelling of 2105264389 in words is "two billion, one hundred five million, two hundred sixty-four thousand, three hundred eighty-nine".