197975 has 6 divisors (see below), whose sum is σ = 245520. Its totient is φ = 158360.

The previous prime is 197971. The next prime is 198013. The reversal of 197975 is 579791.

197975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197975 - 2² = 197971 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3935 + ... + 3984.

It is an arithmetic number, because the mean of its divisors is an integer number (40920).

2¹⁹⁷⁹⁷⁵ is an apocalyptic number.

197975 is a deficient number, since it is larger than the sum of its proper divisors (47545).

197975 is an equidigital number, since it uses as much as digits as its factorization.

197975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929 (or 7924 counting only the distinct ones).

The product of its digits is 19845, while the sum is 38.

The square root of 197975 is about 444.9438166780. The cubic root of 197975 is about 58.2823136667.

It can be divided in two parts, 19 and 7975, that multiplied together give a triangular number (151525 = T₅₅₀).

The spelling of 197975 in words is "one hundred ninety-seven thousand, nine hundred seventy-five".