197165 has 8 divisors (see below), whose sum is σ = 241920. Its totient is φ = 154192.

The previous prime is 197161. The next prime is 197203. The reversal of 197165 is 561791.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 197165 - 2² = 197161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197161) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 185 + ... + 654.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2¹⁹⁷¹⁶⁵ is an apocalyptic number.

It is an amenable number.

197165 is a deficient number, since it is larger than the sum of its proper divisors (44755).

197165 is an equidigital number, since it uses as much as digits as its factorization.

197165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891.

The product of its digits is 1890, while the sum is 29.

The square root of 197165 is about 444.0326564567. The cubic root of 197165 is about 58.2027190977.

Subtracting from 197165 its sum of digits (29), we obtain a square (197136 = 444²).

The spelling of 197165 in words is "one hundred ninety-seven thousand, one hundred sixty-five".