2105287 has 2 divisors, whose sum is σ = 2105288. Its totient is φ = 2105286.

The previous prime is 2105273. The next prime is 2105317. The reversal of 2105287 is 7825012.

2105287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105287 - 2¹¹ = 2103239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052643 + 1052644.

It is an arithmetic number, because the mean of its divisors is an integer number (1052644).

2^2105287 is an apocalyptic number.

2105287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105287 is an equidigital number, since it uses as much as digits as its factorization.

2105287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2105287 is about 1450.9607162153. The cubic root of 2105287 is about 128.1652934543.

The spelling of 2105287 in words is "two million, one hundred five thousand, two hundred eighty-seven".