181812096 has 48 divisors (see below), whose sum is σ = 523186560. Its totient is φ = 60603648.

The previous prime is 181812091. The next prime is 181812119. The reversal of 181812096 is 690218181.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 181812096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181812091) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 77760 + ... + 80063.

It is an arithmetic number, because the mean of its divisors is an integer number (10899720).

Almost surely, 2^181812096 is an apocalyptic number.

181812096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

181812096 is an abundant number, since it is smaller than the sum of its proper divisors (341374464).

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

181812096 is a wasteful number, since it uses less digits than its factorization.

181812096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157843 (or 157828 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 181812096 is about 13483.7715791985. The cubic root of 181812096 is about 566.5100140606.

The spelling of 181812096 in words is "one hundred eighty-one million, eight hundred twelve thousand, ninety-six".