164336217 has 4 divisors (see below), whose sum is σ = 219114960. Its totient is φ = 109557476.

The previous prime is 164336189. The next prime is 164336233. The reversal of 164336217 is 712633461.

164336217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164336217 - 2¹⁴ = 164319833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164336317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27389367 + ... + 27389372.

It is an arithmetic number, because the mean of its divisors is an integer number (54778740).

Almost surely, 2^164336217 is an apocalyptic number.

It is an amenable number.

164336217 is a deficient number, since it is larger than the sum of its proper divisors (54778743).

164336217 is an equidigital number, since it uses as much as digits as its factorization.

164336217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54778742.

The product of its digits is 18144, while the sum is 33.

The square root of 164336217 is about 12819.3688222159. The cubic root of 164336217 is about 547.7441674842.

Adding to 164336217 its reverse (712633461), we get a palindrome (876969678).

The spelling of 164336217 in words is "one hundred sixty-four million, three hundred thirty-six thousand, two hundred seventeen".