195043189 has 8 divisors (see below), whose sum is σ = 223973280. Its totient is φ = 167979600.

The previous prime is 195043181. The next prime is 195043217. The reversal of 195043189 is 981340591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195043189 - 2³ = 195043181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195043181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466402 + ... + 466819.

It is an arithmetic number, because the mean of its divisors is an integer number (27996660).

Almost surely, 2^195043189 is an apocalyptic number.

195043189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

195043189 is a deficient number, since it is larger than the sum of its proper divisors (28930091).

195043189 is a wasteful number, since it uses less digits than its factorization.

195043189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933251.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 195043189 is about 13965.7863724174. The cubic root of 195043189 is about 579.9318082730.

The spelling of 195043189 in words is "one hundred ninety-five million, forty-three thousand, one hundred eighty-nine".