214443209 has 8 divisors (see below), whose sum is σ = 217868160. Its totient is φ = 211036176.

The previous prime is 214443179. The next prime is 214443263. The reversal of 214443209 is 902344412.

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

It is a de Polignac number, because none of the positive numbers 2^k-214443209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214403209) 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 7 ways as a sum of consecutive naturals, for example, 20762 + ... + 29324.

It is an arithmetic number, because the mean of its divisors is an integer number (27233520).

Almost surely, 2^214443209 is an apocalyptic number.

It is an amenable number.

214443209 is a deficient number, since it is larger than the sum of its proper divisors (3424951).

214443209 is an equidigital number, since it uses as much as digits as its factorization.

214443209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8959.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 214443209 is about 14643.8795747575. The cubic root of 214443209 is about 598.5550498437. Note that the first 3 decimals are identical.

The spelling of 214443209 in words is "two hundred fourteen million, four hundred forty-three thousand, two hundred nine".