6816159 has 12 divisors (see below), whose sum is σ = 11252176. Its totient is φ = 3894912.

The previous prime is 6816157. The next prime is 6816163. The reversal of 6816159 is 9516186.

It is not a de Polignac number, because 6816159 - 2¹ = 6816157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6816151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54034 + ... + 54159.

Almost surely, 2^6816159 is an apocalyptic number.

6816159 is a deficient number, since it is larger than the sum of its proper divisors (4436017).

6816159 is a wasteful number, since it uses less digits than its factorization.

6816159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108206 (or 108203 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 6816159 is about 2610.7774704099. Note that the first 3 decimals coincide. The cubic root of 6816159 is about 189.6035964441.

The spelling of 6816159 in words is "six million, eight hundred sixteen thousand, one hundred fifty-nine".