164134189 has 2 divisors, whose sum is σ = 164134190. Its totient is φ = 164134188.

The previous prime is 164134129. The next prime is 164134207. The reversal of 164134189 is 981431461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150258564 + 13875625 = 12258^2 + 3725^2 .

It is an emirp because it is prime and its reverse (981431461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164134189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164134129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82067094 + 82067095.

It is an arithmetic number, because the mean of its divisors is an integer number (82067095).

Almost surely, 2^164134189 is an apocalyptic number.

It is an amenable number.

164134189 is a deficient number, since it is larger than the sum of its proper divisors (1).

164134189 is an equidigital number, since it uses as much as digits as its factorization.

164134189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 164134189 is about 12811.4866038255. The cubic root of 164134189 is about 547.5196175980.

It can be divided in two parts, 16413 and 4189, that added together give a palindrome (20602).

The spelling of 164134189 in words is "one hundred sixty-four million, one hundred thirty-four thousand, one hundred eighty-nine".