2108243 has 2 divisors, whose sum is σ = 2108244. Its totient is φ = 2108242.

The previous prime is 2108231. The next prime is 2108251. The reversal of 2108243 is 3428012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2108243 - 2¹² = 2104147 is a prime.

It is not a weakly prime, because it can be changed into another prime (2108263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054121 + 1054122.

It is an arithmetic number, because the mean of its divisors is an integer number (1054122).

2^2108243 is an apocalyptic number.

2108243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108243 is an equidigital number, since it uses as much as digits as its factorization.

2108243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2108243 is about 1451.9789943384. The cubic root of 2108243 is about 128.2252503517.

The spelling of 2108243 in words is "two million, one hundred eight thousand, two hundred forty-three".