210730223 has 8 divisors (see below), whose sum is σ = 229996800. Its totient is φ = 191481880.

The previous prime is 210730217. The next prime is 210730231. The reversal of 210730223 is 322037012.

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

It is a cyclic number.

It is not a de Polignac number, because 210730223 - 2¹⁰ = 210729199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210730195 and 210730204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210730213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33386 + ... + 39192.

It is an arithmetic number, because the mean of its divisors is an integer number (28749600).

Almost surely, 2^210730223 is an apocalyptic number.

210730223 is a deficient number, since it is larger than the sum of its proper divisors (19266577).

210730223 is a wasteful number, since it uses less digits than its factorization.

210730223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9117.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 210730223 is about 14516.5499689148. The cubic root of 210730223 is about 595.0803488225.

Adding to 210730223 its reverse (322037012), we get a palindrome (532767235).

The spelling of 210730223 in words is "two hundred ten million, seven hundred thirty thousand, two hundred twenty-three".