2266591 has 2 divisors, whose sum is σ = 2266592. Its totient is φ = 2266590.

The previous prime is 2266571. The next prime is 2266601. The reversal of 2266591 is 1956622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2266591 - 2⁷ = 2266463 is a prime.

It is a super-3 number, since 3×2266591³ = 34933390179019989213, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2266501) 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, 1133295 + 1133296.

It is an arithmetic number, because the mean of its divisors is an integer number (1133296).

2^2266591 is an apocalyptic number.

2266591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2266591 is an equidigital number, since it uses as much as digits as its factorization.

2266591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 2266591 is about 1505.5201758861. The cubic root of 2266591 is about 131.3583607012.

Adding to 2266591 its sum of digits (31), we get a palindrome (2266622).

The spelling of 2266591 in words is "two million, two hundred sixty-six thousand, five hundred ninety-one".