8186081 has 2 divisors, whose sum is σ = 8186082. Its totient is φ = 8186080.

The previous prime is 8186071. The next prime is 8186083. The reversal of 8186081 is 1806818.

It is a happy number.

8186081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4800481 + 3385600 = 2191^2 + 1840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8186081 is a prime.

It is a super-2 number, since 2×8186081² = 134023844277122, which contains 22 as substring.

Together with 8186083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8186083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4093040 + 4093041.

It is an arithmetic number, because the mean of its divisors is an integer number (4093041).

Almost surely, 2^8186081 is an apocalyptic number.

It is an amenable number.

8186081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8186081 is an equidigital number, since it uses as much as digits as its factorization.

8186081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 8186081 is about 2861.1328176091. The cubic root of 8186081 is about 201.5388050306.

The spelling of 8186081 in words is "eight million, one hundred eighty-six thousand, eighty-one".