8108161 has 2 divisors, whose sum is σ = 8108162. Its totient is φ = 8108160.

The previous prime is 8108159. The next prime is 8108171. The reversal of 8108161 is 1618018.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6533136 + 1575025 = 2556^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 8108161 - 2¹ = 8108159 is a prime.

Together with 8108159, it forms a pair of twin primes.

It is equal to p₅₄₆₅₂₃ and since 8108161 and 546523 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8108171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4054080 + 4054081.

It is an arithmetic number, because the mean of its divisors is an integer number (4054081).

Almost surely, 2^8108161 is an apocalyptic number.

It is an amenable number.

8108161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8108161 is an equidigital number, since it uses as much as digits as its factorization.

8108161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 8108161 is about 2847.4832747533. The cubic root of 8108161 is about 200.8973098214.

The spelling of 8108161 in words is "eight million, one hundred eight thousand, one hundred sixty-one".