164630223 has 6 divisors (see below), whose sum is σ = 237799224. Its totient is φ = 109753476.

The previous prime is 164630201. The next prime is 164630239. The reversal of 164630223 is 322036461.

164630223 is a `hidden beast` number, since 1 + 6 + 4 + 630 + 2 + 23 = 666.

164630223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164630223 - 2⁹ = 164629711 is a prime.

It is a super-2 number, since 2×164630223² = 54206220650059458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164630623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9146115 + ... + 9146132.

It is an arithmetic number, because the mean of its divisors is an integer number (39633204).

Almost surely, 2^164630223 is an apocalyptic number.

164630223 is a deficient number, since it is larger than the sum of its proper divisors (73169001).

164630223 is a wasteful number, since it uses less digits than its factorization.

164630223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18292253 (or 18292250 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 164630223 is about 12830.8309551642. The cubic root of 164630223 is about 548.0706204386.

Adding to 164630223 its reverse (322036461), we get a palindrome (486666684).

The spelling of 164630223 in words is "one hundred sixty-four million, six hundred thirty thousand, two hundred twenty-three".