181137068 has 24 divisors (see below), whose sum is σ = 363636000. Its totient is φ = 77338368.

The previous prime is 181137067. The next prime is 181137071. The reversal of 181137068 is 860731181.

It is not an unprimeable number, because it can be changed into a prime (181137067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4493 + ... + 19556.

It is an arithmetic number, because the mean of its divisors is an integer number (15151500).

Almost surely, 2^181137068 is an apocalyptic number.

It is an amenable number.

181137068 is an abundant number, since it is smaller than the sum of its proper divisors (182498932).

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

181137068 is a wasteful number, since it uses less digits than its factorization.

181137068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24329 (or 24327 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 181137068 is about 13458.7171751248. The cubic root of 181137068 is about 565.8080358886.

The spelling of 181137068 in words is "one hundred eighty-one million, one hundred thirty-seven thousand, sixty-eight".