117232128 has 240 divisors, whose sum is σ = 387266880. Its totient is φ = 33841152.

The previous prime is 117232121. The next prime is 117232151. The reversal of 117232128 is 821232711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117232121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1138125 + ... + 1138227.

It is an arithmetic number, because the mean of its divisors is an integer number (1613612).

Almost surely, 2^117232128 is an apocalyptic number.

117232128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117232128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193633440).

117232128 is an abundant number, since it is smaller than the sum of its proper divisors (270034752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117232128 is a wasteful number, since it uses less digits than its factorization.

117232128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 140 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 117232128 is about 10827.3786301210. The cubic root of 117232128 is about 489.4205673379.

Adding to 117232128 its reverse (821232711), we get a palindrome (938464839).

The spelling of 117232128 in words is "one hundred seventeen million, two hundred thirty-two thousand, one hundred twenty-eight".