2262581 has 6 divisors (see below), whose sum is σ = 2403810. Its totient is φ = 2129216.

The previous prime is 2262569. The next prime is 2262593. The reversal of 2262581 is 1852622.

It is an interprime number because it is at equal distance from previous prime (2262569) and next prime (2262593).

It can be written as a sum of positive squares in 3 ways, for example, as 483025 + 1779556 = 695^2 + 1334^2 .

It is not a de Polignac number, because 2262581 - 2¹⁰ = 2261557 is a prime.

It is a super-2 number, since 2×2262581² = 10238545563122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2262581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2262521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3626 + ... + 4203.

It is an arithmetic number, because the mean of its divisors is an integer number (400635).

2^2262581 is an apocalyptic number.

It is an amenable number.

2262581 is a deficient number, since it is larger than the sum of its proper divisors (141229).

2262581 is an equidigital number, since it uses as much as digits as its factorization.

2262581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863 (or 7846 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 2262581 is about 1504.1878207192. The cubic root of 2262581 is about 131.2808495889.

The spelling of 2262581 in words is "two million, two hundred sixty-two thousand, five hundred eighty-one".