197188 has 6 divisors (see below), whose sum is σ = 345086. Its totient is φ = 98592.

The previous prime is 197161. The next prime is 197203. The reversal of 197188 is 881791.

It can be written as a sum of positive squares in only one way, i.e., 114244 + 82944 = 338^2 + 288^2 .

It is an unprimeable number.

197188 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24645 + ... + 24652.

2¹⁹⁷¹⁸⁸ is an apocalyptic number.

It is an amenable number.

197188 is a deficient number, since it is larger than the sum of its proper divisors (147898).

197188 is a wasteful number, since it uses less digits than its factorization.

197188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49301 (or 49299 counting only the distinct ones).

The product of its digits is 4032, while the sum is 34.

The square root of 197188 is about 444.0585546975. The cubic root of 197188 is about 58.2049821945.

The spelling of 197188 in words is "one hundred ninety-seven thousand, one hundred eighty-eight".