2108291 has 2 divisors, whose sum is σ = 2108292. Its totient is φ = 2108290.

The previous prime is 2108263. The next prime is 2108299. The reversal of 2108291 is 1928012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2108291 is a prime.

It is not a weakly prime, because it can be changed into another prime (2108299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054145 + 1054146.

It is an arithmetic number, because the mean of its divisors is an integer number (1054146).

2^2108291 is an apocalyptic number.

2108291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108291 is an equidigital number, since it uses as much as digits as its factorization.

2108291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2108291 is about 1451.9955234091. The cubic root of 2108291 is about 128.2262234788.

The spelling of 2108291 in words is "two million, one hundred eight thousand, two hundred ninety-one".