8115169 has 2 divisors, whose sum is σ = 8115170. Its totient is φ = 8115168.

The previous prime is 8115167. The next prime is 8115179. The reversal of 8115169 is 9615118.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7772944 + 342225 = 2788^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 8115169 - 2¹ = 8115167 is a prime.

It is a super-2 number, since 2×8115169² = 131711935797122, which contains 22 as substring.

Together with 8115167, it forms a pair of twin primes.

8115169 is a lucky number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 8115169.

It is not a weakly prime, because it can be changed into another prime (8115167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4057584 + 4057585.

It is an arithmetic number, because the mean of its divisors is an integer number (4057585).

Almost surely, 2^8115169 is an apocalyptic number.

It is an amenable number.

8115169 is a deficient number, since it is larger than the sum of its proper divisors (1).

8115169 is an equidigital number, since it uses as much as digits as its factorization.

8115169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 31.

The square root of 8115169 is about 2848.7135693151. The cubic root of 8115169 is about 200.9551726308.

The spelling of 8115169 in words is "eight million, one hundred fifteen thousand, one hundred sixty-nine".