117229216 has 72 divisors (see below), whose sum is σ = 255252060. Its totient is φ = 52955136.

The previous prime is 117229213. The next prime is 117229241. The reversal of 117229216 is 612922711.

It can be written as a sum of positive squares in 6 ways, for example, as 54819216 + 62410000 = 7404^2 + 7900^2 .

It is not an unprimeable number, because it can be changed into a prime (117229213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286420 + ... + 286828.

Almost surely, 2^117229216 is an apocalyptic number.

117229216 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 117229216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127626030).

117229216 is an abundant number, since it is smaller than the sum of its proper divisors (138022844).

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

117229216 is a wasteful number, since it uses less digits than its factorization.

117229216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 477 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 117229216 is about 10827.2441553703. The cubic root of 117229216 is about 489.4165149661.

It can be divided in two parts, 11 and 7229216, that added together give a palindrome (7229227).

The spelling of 117229216 in words is "one hundred seventeen million, two hundred twenty-nine thousand, two hundred sixteen".