197005 has 12 divisors (see below), whose sum is σ = 250236. Its totient is φ = 148800.

The previous prime is 197003. The next prime is 197009. The reversal of 197005 is 500791.

It can be written as a sum of positive squares in 2 ways, for example, as 34596 + 162409 = 186^2 + 403^2 .

It is not a de Polignac number, because 197005 - 2¹ = 197003 is a prime.

It is a Duffinian number.

197005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197003) 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 11 ways as a sum of consecutive naturals, for example, 4785 + ... + 4825.

It is an arithmetic number, because the mean of its divisors is an integer number (20853).

2¹⁹⁷⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

197005 is a deficient number, since it is larger than the sum of its proper divisors (53231).

197005 is an equidigital number, since it uses as much as digits as its factorization.

197005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 197005 is about 443.8524529616. The cubic root of 197005 is about 58.1869709422.

Adding to 197005 its reverse (500791), we get a palindrome (697796).

The spelling of 197005 in words is "one hundred ninety-seven thousand, five".