117197188 has 24 divisors (see below), whose sum is σ = 214996320. Its totient is φ = 55836480.

The previous prime is 117197177. The next prime is 117197189. The reversal of 117197188 is 881791711.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (117197189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258 + ... + 15361.

It is an arithmetic number, because the mean of its divisors is an integer number (8958180).

Almost surely, 2^117197188 is an apocalyptic number.

It is an amenable number.

117197188 is a deficient number, since it is larger than the sum of its proper divisors (97799132).

117197188 is a wasteful number, since it uses less digits than its factorization.

117197188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16707 (or 16705 counting only the distinct ones).

The product of its digits is 28224, while the sum is 43.

The square root of 117197188 is about 10825.7650076103. The cubic root of 117197188 is about 489.3719400146.

The spelling of 117197188 in words is "one hundred seventeen million, one hundred ninety-seven thousand, one hundred eighty-eight".