2105346689 has 2 divisors, whose sum is σ = 2105346690. Its totient is φ = 2105346688.

The previous prime is 2105346673. The next prime is 2105346701. The reversal of 2105346689 is 9866435012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1771736464 + 333610225 = 42092^2 + 18265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105346689 - 2⁴ = 2105346673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2105346629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052673344 + 1052673345.

It is an arithmetic number, because the mean of its divisors is an integer number (1052673345).

Almost surely, 2^2105346689 is an apocalyptic number.

It is an amenable number.

2105346689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105346689 is an equidigital number, since it uses as much as digits as its factorization.

2105346689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 2105346689 is about 45884.0570241996. The cubic root of 2105346689 is about 1281.6650468832.

The spelling of 2105346689 in words is "two billion, one hundred five million, three hundred forty-six thousand, six hundred eighty-nine".