117740197 has 4 divisors (see below), whose sum is σ = 122859360. Its totient is φ = 112621036.

The previous prime is 117740191. The next prime is 117740213. The reversal of 117740197 is 791047711.

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 a de Polignac number, because none of the positive numbers 2^k-117740197 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 (117740191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2559547 + ... + 2559592.

It is an arithmetic number, because the mean of its divisors is an integer number (30714840).

Almost surely, 2^117740197 is an apocalyptic number.

It is an amenable number.

117740197 is a deficient number, since it is larger than the sum of its proper divisors (5119163).

117740197 is an equidigital number, since it uses as much as digits as its factorization.

117740197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119162.

The product of its (nonzero) digits is 12348, while the sum is 37.

The square root of 117740197 is about 10850.8154993070. The cubic root of 117740197 is about 490.1265770457.

The spelling of 117740197 in words is "one hundred seventeen million, seven hundred forty thousand, one hundred ninety-seven".