82184189 has 2 divisors, whose sum is σ = 82184190. Its totient is φ = 82184188.

The previous prime is 82184159. The next prime is 82184233. The reversal of 82184189 is 98148128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63840100 + 18344089 = 7990^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 82184189 - 2¹² = 82180093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82184149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41092094 + 41092095.

It is an arithmetic number, because the mean of its divisors is an integer number (41092095).

Almost surely, 2^82184189 is an apocalyptic number.

It is an amenable number.

82184189 is a deficient number, since it is larger than the sum of its proper divisors (1).

82184189 is an equidigital number, since it uses as much as digits as its factorization.

82184189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 41.

The square root of 82184189 is about 9065.5495696621. The cubic root of 82184189 is about 434.7731921965.

The spelling of 82184189 in words is "eighty-two million, one hundred eighty-four thousand, one hundred eighty-nine".