201224189 has 8 divisors (see below), whose sum is σ = 213205248. Its totient is φ = 189259200.

The previous prime is 201224183. The next prime is 201224201. The reversal of 201224189 is 981422102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201224189 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 (201224183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30134 + ... + 36200.

It is an arithmetic number, because the mean of its divisors is an integer number (26650656).

Almost surely, 2^201224189 is an apocalyptic number.

It is an amenable number.

201224189 is a deficient number, since it is larger than the sum of its proper divisors (11981059).

201224189 is a wasteful number, since it uses less digits than its factorization.

201224189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 201224189 is about 14185.3512117254. The cubic root of 201224189 is about 585.9943048676.

The spelling of 201224189 in words is "two hundred one million, two hundred twenty-four thousand, one hundred eighty-nine".