2233561 has 4 divisors (see below), whose sum is σ = 2436624. Its totient is φ = 2030500.

The previous prime is 2233547. The next prime is 2233571. The reversal of 2233561 is 1653322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2233561 - 2⁵ = 2233529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2233501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101515 + ... + 101536.

It is an arithmetic number, because the mean of its divisors is an integer number (609156).

2^2233561 is an apocalyptic number.

It is an amenable number.

2233561 is a deficient number, since it is larger than the sum of its proper divisors (203063).

2233561 is a wasteful number, since it uses less digits than its factorization.

2233561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203062.

The product of its digits is 1080, while the sum is 22.

The square root of 2233561 is about 1494.5102876862. The cubic root of 2233561 is about 130.7171606818.

Adding to 2233561 its reverse (1653322), we get a palindrome (3886883).

The spelling of 2233561 in words is "two million, two hundred thirty-three thousand, five hundred sixty-one".