197180 has 12 divisors (see below), whose sum is σ = 414120. Its totient is φ = 78864.

The previous prime is 197161. The next prime is 197203. The reversal of 197180 is 81791.

197180 = T₁₁₆ + T₁₁₇ + ... + T₁₃₉.

It is a congruent number.

It is an unprimeable number.

197180 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4910 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (34510).

2¹⁹⁷¹⁸⁰ is an apocalyptic number.

197180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197180 is an abundant number, since it is smaller than the sum of its proper divisors (216940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197180 is a wasteful number, since it uses less digits than its factorization.

197180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868 (or 9866 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 197180 is about 444.0495467850. The cubic root of 197180 is about 58.2041950504.

The spelling of 197180 in words is "one hundred ninety-seven thousand, one hundred eighty".