112209 has 8 divisors (see below), whose sum is σ = 151392. Its totient is φ = 73920.

The previous prime is 112207. The next prime is 112213. The reversal of 112209 is 902211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112209 - 2¹ = 112207 is a prime.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (112207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174 + ... + 504.

It is an arithmetic number, because the mean of its divisors is an integer number (18924).

2¹¹²²⁰⁹ is an apocalyptic number.

It is an amenable number.

112209 is a deficient number, since it is larger than the sum of its proper divisors (39183).

112209 is a wasteful number, since it uses less digits than its factorization.

112209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 112209 is about 334.9761185518. The cubic root of 112209 is about 48.2328099699.

The spelling of 112209 in words is "one hundred twelve thousand, two hundred nine".