181982068 has 12 divisors (see below), whose sum is σ = 319388832. Its totient is φ = 90728120.

The previous prime is 181982051. The next prime is 181982081. The reversal of 181982068 is 860289181.

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, 64168 + ... + 66943.

It is an arithmetic number, because the mean of its divisors is an integer number (26615736).

Almost surely, 2^181982068 is an apocalyptic number.

It is an amenable number.

181982068 is a deficient number, since it is larger than the sum of its proper divisors (137406764).

181982068 is a wasteful number, since it uses less digits than its factorization.

181982068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131462 (or 131460 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 43.

The square root of 181982068 is about 13490.0729427235. The cubic root of 181982068 is about 566.6864981910.

The spelling of 181982068 in words is "one hundred eighty-one million, nine hundred eighty-two thousand, sixty-eight".