181341140 has 12 divisors (see below), whose sum is σ = 380816436. Its totient is φ = 72536448.

The previous prime is 181341133. The next prime is 181341151. The reversal of 181341140 is 41143181.

It is a happy number.

181341140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 103266244 + 78074896 = 10162^2 + 8836^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4533509 + ... + 4533548.

It is an arithmetic number, because the mean of its divisors is an integer number (31734703).

Almost surely, 2^181341140 is an apocalyptic number.

181341140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181341140 is an abundant number, since it is smaller than the sum of its proper divisors (199475296).

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

181341140 is a wasteful number, since it uses less digits than its factorization.

181341140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9067066 (or 9067064 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 181341140 is about 13466.2964470563. The cubic root of 181341140 is about 566.0204390227.

The spelling of 181341140 in words is "one hundred eighty-one million, three hundred forty-one thousand, one hundred forty".