80182189 has 2 divisors, whose sum is σ = 80182190. Its totient is φ = 80182188.

The previous prime is 80182181. The next prime is 80182231. The reversal of 80182189 is 98128108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74960964 + 5221225 = 8658^2 + 2285^2 .

It is a cyclic number.

It is not a de Polignac number, because 80182189 - 2³ = 80182181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80182181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40091094 + 40091095.

It is an arithmetic number, because the mean of its divisors is an integer number (40091095).

Almost surely, 2^80182189 is an apocalyptic number.

It is an amenable number.

80182189 is a deficient number, since it is larger than the sum of its proper divisors (1).

80182189 is an equidigital number, since it uses as much as digits as its factorization.

80182189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 80182189 is about 8954.4507927622. The cubic root of 80182189 is about 431.2137852667.

The spelling of 80182189 in words is "eighty million, one hundred eighty-two thousand, one hundred eighty-nine".