117197 has 4 divisors (see below), whose sum is σ = 118080. Its totient is φ = 116316.

The previous prime is 117193. The next prime is 117203. The reversal of 117197 is 791711.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 791711 = 19 ⋅41669.

It is a cyclic number.

It is not a de Polignac number, because 117197 - 2² = 117193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197 + ... + 522.

It is an arithmetic number, because the mean of its divisors is an integer number (29520).

2¹¹⁷¹⁹⁷ is an apocalyptic number.

It is an amenable number.

117197 is a deficient number, since it is larger than the sum of its proper divisors (883).

117197 is an equidigital number, since it uses as much as digits as its factorization.

117197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882.

The product of its digits is 441, while the sum is 26.

The square root of 117197 is about 342.3404737977. The cubic root of 117197 is about 48.9371678342.

The spelling of 117197 in words is "one hundred seventeen thousand, one hundred ninety-seven".