108005189 has 2 divisors, whose sum is σ = 108005190. Its totient is φ = 108005188.

The previous prime is 108005143. The next prime is 108005213. The reversal of 108005189 is 981500801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100661089 + 7344100 = 10033^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 108005189 - 2⁸ = 108004933 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 (108005489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54002594 + 54002595.

It is an arithmetic number, because the mean of its divisors is an integer number (54002595).

Almost surely, 2^108005189 is an apocalyptic number.

It is an amenable number.

108005189 is a deficient number, since it is larger than the sum of its proper divisors (1).

108005189 is an equidigital number, since it uses as much as digits as its factorization.

108005189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 108005189 is about 10392.5544982935. The cubic root of 108005189 is about 476.2279423424.

The spelling of 108005189 in words is "one hundred eight million, five thousand, one hundred eighty-nine".