8182219 has 4 divisors (see below), whose sum is σ = 8663544. Its totient is φ = 7700896.

The previous prime is 8182211. The next prime is 8182243. The reversal of 8182219 is 9122818.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9122818 = 2 ⋅4561409.

It is a cyclic number.

It is not a de Polignac number, because 8182219 - 2³ = 8182211 is a prime.

It is a super-2 number, since 2×8182219² = 133897415527922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

8182219 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8182211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240637 + ... + 240670.

It is an arithmetic number, because the mean of its divisors is an integer number (2165886).

Almost surely, 2^8182219 is an apocalyptic number.

8182219 is a deficient number, since it is larger than the sum of its proper divisors (481325).

8182219 is a wasteful number, since it uses less digits than its factorization.

8182219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481324.

The product of its digits is 2304, while the sum is 31.

The square root of 8182219 is about 2860.4578304880. The cubic root of 8182219 is about 201.5071062931.

The spelling of 8182219 in words is "eight million, one hundred eighty-two thousand, two hundred nineteen".