117128163 has 8 divisors (see below), whose sum is σ = 157401088. Its totient is φ = 77470344.

The previous prime is 117128161. The next prime is 117128171. The reversal of 117128163 is 361821711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117128163 - 2¹ = 117128161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117128163.

It is not an unprimeable number, because it can be changed into a prime (117128161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153331 + ... + 154092.

It is an arithmetic number, because the mean of its divisors is an integer number (19675136).

Almost surely, 2^117128163 is an apocalyptic number.

117128163 is a deficient number, since it is larger than the sum of its proper divisors (40272925).

117128163 is a wasteful number, since it uses less digits than its factorization.

117128163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307553.

The product of its digits is 2016, while the sum is 30.

The square root of 117128163 is about 10822.5765416559. The cubic root of 117128163 is about 489.2758468903.

Adding to 117128163 its reverse (361821711), we get a palindrome (478949874).

The spelling of 117128163 in words is "one hundred seventeen million, one hundred twenty-eight thousand, one hundred sixty-three".