11232209 has 4 divisors (see below), whose sum is σ = 11269104. Its totient is φ = 11195316.

The previous prime is 11232203. The next prime is 11232217. The reversal of 11232209 is 90223211.

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 a de Polignac number, because none of the positive numbers 2^k-11232209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11232203) 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, 17987 + ... + 18600.

It is an arithmetic number, because the mean of its divisors is an integer number (2817276).

Almost surely, 2^11232209 is an apocalyptic number.

It is an amenable number.

11232209 is a deficient number, since it is larger than the sum of its proper divisors (36895).

11232209 is an equidigital number, since it uses as much as digits as its factorization.

11232209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36894.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11232209 is about 3351.4487911946. The cubic root of 11232209 is about 223.9520584582.

The spelling of 11232209 in words is "eleven million, two hundred thirty-two thousand, two hundred nine".