131197 has 4 divisors (see below), whose sum is σ = 143136. Its totient is φ = 119260.

The previous prime is 131171. The next prime is 131203. The reversal of 131197 is 791131.

131197 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131197 - 2¹⁵ = 98429 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131297) 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 3 ways as a sum of consecutive naturals, for example, 5953 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (35784).

2¹³¹¹⁹⁷ is an apocalyptic number.

It is an amenable number.

131197 is a deficient number, since it is larger than the sum of its proper divisors (11939).

131197 is a wasteful number, since it uses less digits than its factorization.

131197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11938.

The product of its digits is 189, while the sum is 22.

The square root of 131197 is about 362.2112643196. The cubic root of 131197 is about 50.8129764110.

The spelling of 131197 in words is "one hundred thirty-one thousand, one hundred ninety-seven".