8226181 has 8 divisors (see below), whose sum is σ = 8809560. Its totient is φ = 7653888.

The previous prime is 8226161. The next prime is 8226187. The reversal of 8226181 is 1816228.

It can be written as a sum of positive squares in 4 ways, for example, as 1288225 + 6937956 = 1135^2 + 2634^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8226181 - 2⁹ = 8225669 is a prime.

It is a super-3 number, since 3×8226181³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8226187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206 + ... + 4231.

It is an arithmetic number, because the mean of its divisors is an integer number (1101195).

Almost surely, 2^8226181 is an apocalyptic number.

It is an amenable number.

8226181 is a deficient number, since it is larger than the sum of its proper divisors (583379).

8226181 is a wasteful number, since it uses less digits than its factorization.

8226181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543.

The product of its digits is 1536, while the sum is 28.

The square root of 8226181 is about 2868.1319704644. The cubic root of 8226181 is about 201.8673523799.

The spelling of 8226181 in words is "eight million, two hundred twenty-six thousand, one hundred eighty-one".