2210591 has 2 divisors, whose sum is σ = 2210592. Its totient is φ = 2210590.

The previous prime is 2210581. The next prime is 2210617. The reversal of 2210591 is 1950122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2210591 - 2¹⁸ = 1948447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2210521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105295 + 1105296.

It is an arithmetic number, because the mean of its divisors is an integer number (1105296).

2^2210591 is an apocalyptic number.

2210591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210591 is an equidigital number, since it uses as much as digits as its factorization.

2210591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2210591 is about 1486.8056362551. The cubic root of 2210591 is about 130.2675161842.

The spelling of 2210591 in words is "two million, two hundred ten thousand, five hundred ninety-one".