117231216 has 80 divisors (see below), whose sum is σ = 320931840. Its totient is φ = 36771840.

The previous prime is 117231209. The next prime is 117231229. The reversal of 117231216 is 612132711.

It is a super-3 number, since 3×117231216³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173856 + ... + 174528.

It is an arithmetic number, because the mean of its divisors is an integer number (4011648).

Almost surely, 2^117231216 is an apocalyptic number.

117231216 is a gapful number since it is divisible by the number (16) 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 117231216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160465920).

117231216 is an abundant number, since it is smaller than the sum of its proper divisors (203700624).

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

117231216 is a wasteful number, since it uses less digits than its factorization.

117231216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 888 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 117231216 is about 10827.3365145820. The cubic root of 117231216 is about 489.4192981957.

Adding to 117231216 its reverse (612132711), we get a palindrome (729363927).

The spelling of 117231216 in words is "one hundred seventeen million, two hundred thirty-one thousand, two hundred sixteen".