117544140 has 108 divisors (see below), whose sum is σ = 414794016. Its totient is φ = 26865216.

The previous prime is 117544129. The next prime is 117544177. The reversal of 117544140 is 41445711.

117544140 is a `hidden beast` number, since 117 + 544 + 1 + 4 + 0 = 666.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 2157 + ... + 15483.

Almost surely, 2^117544140 is an apocalyptic number.

117544140 is a gapful number since it is divisible by the number (10) 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 117544140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207397008).

117544140 is an abundant number, since it is smaller than the sum of its proper divisors (297249876).

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

117544140 is a wasteful number, since it uses less digits than its factorization.

117544140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13356 (or 13344 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 117544140 is about 10841.7775295382. Note that the first 3 decimals coincide. The cubic root of 117544140 is about 489.8543784962.

Adding to 117544140 its reverse (41445711), we get a palindrome (158989851).

The spelling of 117544140 in words is "one hundred seventeen million, five hundred forty-four thousand, one hundred forty".