181324116 has 96 divisors (see below), whose sum is σ = 483190400. Its totient is φ = 58786560.

The previous prime is 181324103. The next prime is 181324127. The reversal of 181324116 is 611423181.

It is a happy number.

181324116 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 181324116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 859251 + ... + 859461.

Almost surely, 2^181324116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181324116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241595200).

181324116 is an abundant number, since it is smaller than the sum of its proper divisors (301866284).

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

181324116 is a wasteful number, since it uses less digits than its factorization.

181324116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 398 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 181324116 is about 13465.6643356353. The cubic root of 181324116 is about 566.0027261207.

Adding to 181324116 its reverse (611423181), we get a palindrome (792747297).

The spelling of 181324116 in words is "one hundred eighty-one million, three hundred twenty-four thousand, one hundred sixteen".