195039188 has 12 divisors (see below), whose sum is σ = 341687892. Its totient is φ = 97414080.

The previous prime is 195039157. The next prime is 195039193. The reversal of 195039188 is 881930591.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96275344 + 98763844 = 9812^2 + 9938^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22145 + ... + 29672.

It is an arithmetic number, because the mean of its divisors is an integer number (28473991).

Almost surely, 2^195039188 is an apocalyptic number.

It is an amenable number.

195039188 is a deficient number, since it is larger than the sum of its proper divisors (146648704).

195039188 is a wasteful number, since it uses less digits than its factorization.

195039188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52762 (or 52760 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 44.

The square root of 195039188 is about 13965.6431287642. The cubic root of 195039188 is about 579.9278427871.

The spelling of 195039188 in words is "one hundred ninety-five million, thirty-nine thousand, one hundred eighty-eight".