117188 has 6 divisors (see below), whose sum is σ = 205086. Its totient is φ = 58592.

The previous prime is 117167. The next prime is 117191. The reversal of 117188 is 881711.

It can be written as a sum of positive squares in only one way, i.e., 107584 + 9604 = 328^2 + 98^2 .

It is a plaindrome in base 5.

It is a nialpdrome in base 7.

It is an unprimeable number.

117188 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14645 + ... + 14652.

It is an arithmetic number, because the mean of its divisors is an integer number (34181).

2¹¹⁷¹⁸⁸ is an apocalyptic number.

It is an amenable number.

117188 is a deficient number, since it is larger than the sum of its proper divisors (87898).

117188 is a wasteful number, since it uses less digits than its factorization.

117188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29301 (or 29299 counting only the distinct ones).

The product of its digits is 448, while the sum is 26.

The square root of 117188 is about 342.3273287367. The cubic root of 117188 is about 48.9359151122.

Adding to 117188 its reverse (881711), we get a palindrome (998899).

The spelling of 117188 in words is "one hundred seventeen thousand, one hundred eighty-eight".