195530189 has 8 divisors (see below), whose sum is σ = 203696640. Its totient is φ = 187525600.

The previous prime is 195530173. The next prime is 195530201. The reversal of 195530189 is 981035591.

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

It is not a de Polignac number, because 195530189 - 2⁴ = 195530173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195530119) 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 in 7 ways as a sum of consecutive naturals, for example, 37997 + ... + 42834.

It is an arithmetic number, because the mean of its divisors is an integer number (25462080).

Almost surely, 2^195530189 is an apocalyptic number.

It is an amenable number.

195530189 is a deficient number, since it is larger than the sum of its proper divisors (8166451).

195530189 is an equidigital number, since it uses as much as digits as its factorization.

195530189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80931.

The product of its (nonzero) digits is 48600, while the sum is 41.

The square root of 195530189 is about 13983.2109688726. The cubic root of 195530189 is about 580.4140810377.

The spelling of 195530189 in words is "one hundred ninety-five million, five hundred thirty thousand, one hundred eighty-nine".