2108539 has 2 divisors, whose sum is σ = 2108540. Its totient is φ = 2108538.

The previous prime is 2108531. The next prime is 2108543. The reversal of 2108539 is 9358012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2108539 - 2³ = 2108531 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2108531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054269 + 1054270.

It is an arithmetic number, because the mean of its divisors is an integer number (1054270).

2^2108539 is an apocalyptic number.

2108539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108539 is an equidigital number, since it uses as much as digits as its factorization.

2108539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2108539 is about 1452.0809206101. The cubic root of 2108539 is about 128.2312510670.

The spelling of 2108539 in words is "two million, one hundred eight thousand, five hundred thirty-nine".