2241565 has 4 divisors (see below), whose sum is σ = 2689884. Its totient is φ = 1793248.

The previous prime is 2241559. The next prime is 2241583. The reversal of 2241565 is 5651422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1340964 + 900601 = 1158^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 2241565 - 2¹³ = 2233373 is a prime.

It is a super-2 number, since 2×2241565² = 10049227298450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224152 + ... + 224161.

It is an arithmetic number, because the mean of its divisors is an integer number (672471).

2^2241565 is an apocalyptic number.

It is an amenable number.

2241565 is a deficient number, since it is larger than the sum of its proper divisors (448319).

2241565 is an equidigital number, since it uses as much as digits as its factorization.

2241565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448318.

The product of its digits is 2400, while the sum is 25.

The square root of 2241565 is about 1497.1856932258. The cubic root of 2241565 is about 130.8731168542.

Adding to 2241565 its reverse (5651422), we get a palindrome (7892987).

The spelling of 2241565 in words is "two million, two hundred forty-one thousand, five hundred sixty-five".