2182091 has 2 divisors, whose sum is σ = 2182092. Its totient is φ = 2182090.

The previous prime is 2182087. The next prime is 2182097. The reversal of 2182091 is 1902812.

2182091 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 2182091 - 2² = 2182087 is a prime.

It is a super-2 number, since 2×2182091² = 9523042264562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2182097) 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, 1091045 + 1091046.

It is an arithmetic number, because the mean of its divisors is an integer number (1091046).

2^2182091 is an apocalyptic number.

2182091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2182091 is an equidigital number, since it uses as much as digits as its factorization.

2182091 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2182091 is about 1477.1902382564. The cubic root of 2182091 is about 129.7052691867.

The spelling of 2182091 in words is "two million, one hundred eighty-two thousand, ninety-one".