11547223 has 4 divisors (see below), whose sum is σ = 11556160. Its totient is φ = 11538288.

The previous prime is 11547203. The next prime is 11547241. The reversal of 11547223 is 32274511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32274511 = 3407 ⋅9473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11547223 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 (11547203) 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, 2118 + ... + 5251.

It is an arithmetic number, because the mean of its divisors is an integer number (2889040).

Almost surely, 2^11547223 is an apocalyptic number.

11547223 is a deficient number, since it is larger than the sum of its proper divisors (8937).

11547223 is an equidigital number, since it uses as much as digits as its factorization.

11547223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8936.

The product of its digits is 1680, while the sum is 25.

The square root of 11547223 is about 3398.1205099290. The cubic root of 11547223 is about 226.0264085359.

The spelling of 11547223 in words is "eleven million, five hundred forty-seven thousand, two hundred twenty-three".