164215333 has 2 divisors, whose sum is σ = 164215334. Its totient is φ = 164215332.

The previous prime is 164215301. The next prime is 164215343. The reversal of 164215333 is 333512461.

164215333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84327489 + 79887844 = 9183^2 + 8938^2 .

It is an emirp because it is prime and its reverse (333512461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164215333 - 2⁵ = 164215301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164215343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82107666 + 82107667.

It is an arithmetic number, because the mean of its divisors is an integer number (82107667).

Almost surely, 2^164215333 is an apocalyptic number.

It is an amenable number.

164215333 is a deficient number, since it is larger than the sum of its proper divisors (1).

164215333 is an equidigital number, since it uses as much as digits as its factorization.

164215333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 164215333 is about 12814.6530581206. The cubic root of 164215333 is about 547.6098295820.

Adding to 164215333 its reverse (333512461), we get a palindrome (497727794).

The spelling of 164215333 in words is "one hundred sixty-four million, two hundred fifteen thousand, three hundred thirty-three".