181285234 has 8 divisors (see below), whose sum is σ = 292845420. Its totient is φ = 83670096.

The previous prime is 181285217. The next prime is 181285249. The reversal of 181285234 is 432582181.

It is a happy number.

181285234 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 can be written as a sum of positive squares in 2 ways, for example, as 167573025 + 13712209 = 12945^2 + 3703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 181285234.

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, 3486229 + ... + 3486280.

Almost surely, 2^181285234 is an apocalyptic number.

181285234 is a deficient number, since it is larger than the sum of its proper divisors (111560186).

181285234 is a wasteful number, since it uses less digits than its factorization.

181285234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6972524.

The product of its digits is 15360, while the sum is 34.

The square root of 181285234 is about 13464.2205121574. The cubic root of 181285234 is about 565.9622665435.

The spelling of 181285234 in words is "one hundred eighty-one million, two hundred eighty-five thousand, two hundred thirty-four".