338181169 has 2 divisors, whose sum is σ = 338181170. Its totient is φ = 338181168.

The previous prime is 338181157. The next prime is 338181191. The reversal of 338181169 is 961181833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320875569 + 17305600 = 17913^2 + 4160^2 .

It is an emirp because it is prime and its reverse (961181833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338181169 - 2¹³ = 338172977 is a prime.

It is a super-2 number, since 2×338181169² = 228733006132413122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338181269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169090584 + 169090585.

It is an arithmetic number, because the mean of its divisors is an integer number (169090585).

Almost surely, 2^338181169 is an apocalyptic number.

It is an amenable number.

338181169 is a deficient number, since it is larger than the sum of its proper divisors (1).

338181169 is an equidigital number, since it uses as much as digits as its factorization.

338181169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 338181169 is about 18389.7027980335. The cubic root of 338181169 is about 696.7064112253.

The spelling of 338181169 in words is "three hundred thirty-eight million, one hundred eighty-one thousand, one hundred sixty-nine".