108434189 has 2 divisors, whose sum is σ = 108434190. Its totient is φ = 108434188.

The previous prime is 108434173. The next prime is 108434191. The reversal of 108434189 is 981434801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90878089 + 17556100 = 9533^2 + 4190^2 .

It is a cyclic number.

It is not a de Polignac number, because 108434189 - 2⁴ = 108434173 is a prime.

Together with 108434191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108436189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54217094 + 54217095.

It is an arithmetic number, because the mean of its divisors is an integer number (54217095).

Almost surely, 2^108434189 is an apocalyptic number.

It is an amenable number.

108434189 is a deficient number, since it is larger than the sum of its proper divisors (1).

108434189 is an equidigital number, since it uses as much as digits as its factorization.

108434189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 108434189 is about 10413.1738197343. The cubic root of 108434189 is about 476.8576401276.

The spelling of 108434189 in words is "one hundred eight million, four hundred thirty-four thousand, one hundred eighty-nine".