11564233 has 4 divisors (see below), whose sum is σ = 12244500. Its totient is φ = 10883968.

The previous prime is 11564227. The next prime is 11564237. The reversal of 11564233 is 33246511.

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 7225344 + 4338889 = 2688^2 + 2083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11564233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11564198 and 11564207.

It is not an unprimeable number, because it can be changed into a prime (11564237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340108 + ... + 340141.

It is an arithmetic number, because the mean of its divisors is an integer number (3061125).

Almost surely, 2^11564233 is an apocalyptic number.

It is an amenable number.

11564233 is a deficient number, since it is larger than the sum of its proper divisors (680267).

11564233 is an equidigital number, since it uses as much as digits as its factorization.

11564233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680266.

The product of its digits is 2160, while the sum is 25.

The square root of 11564233 is about 3400.6224430242. The cubic root of 11564233 is about 226.1373391870.

The spelling of 11564233 in words is "eleven million, five hundred sixty-four thousand, two hundred thirty-three".