11554223 has 4 divisors (see below), whose sum is σ = 12162360. Its totient is φ = 10946088.

The previous prime is 11554201. The next prime is 11554243. The reversal of 11554223 is 32245511.

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

It is a cyclic number.

It is not a de Polignac number, because 11554223 - 2²⁰ = 10505647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11554243) 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 in 3 ways as a sum of consecutive naturals, for example, 304040 + ... + 304077.

It is an arithmetic number, because the mean of its divisors is an integer number (3040590).

Almost surely, 2^11554223 is an apocalyptic number.

11554223 is a deficient number, since it is larger than the sum of its proper divisors (608137).

11554223 is an equidigital number, since it uses as much as digits as its factorization.

11554223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608136.

The product of its digits is 1200, while the sum is 23.

The square root of 11554223 is about 3399.1503350102. The cubic root of 11554223 is about 226.0720721919.

Adding to 11554223 its reverse (32245511), we get a palindrome (43799734).

The spelling of 11554223 in words is "eleven million, five hundred fifty-four thousand, two hundred twenty-three".