117312080 has 80 divisors (see below), whose sum is σ = 290070720. Its totient is φ = 43997184.

The previous prime is 117312079. The next prime is 117312101. The reversal of 117312080 is 80213711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×117312080² = 27524248227852800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 171419 + ... + 172101.

It is an arithmetic number, because the mean of its divisors is an integer number (3625884).

Almost surely, 2^117312080 is an apocalyptic number.

117312080 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 117312080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145035360).

117312080 is an abundant number, since it is smaller than the sum of its proper divisors (172758640).

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

117312080 is a wasteful number, since it uses less digits than its factorization.

117312080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 117312080 is about 10831.0701225687. The cubic root of 117312080 is about 489.5318032300.

Adding to 117312080 its reverse (80213711), we get a palindrome (197525791).

The spelling of 117312080 in words is "one hundred seventeen million, three hundred twelve thousand, eighty".