180243012 has 12 divisors (see below), whose sum is σ = 420567056. Its totient is φ = 60081000.

The previous prime is 180242999. The next prime is 180243013. The reversal of 180243012 is 210342081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 180243012.

It is not an unprimeable number, because it can be changed into a prime (180243013) 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 3 ways as a sum of consecutive naturals, for example, 7510114 + ... + 7510137.

Almost surely, 2^180243012 is an apocalyptic number.

180243012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180243012 is an abundant number, since it is smaller than the sum of its proper divisors (240324044).

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

180243012 is a wasteful number, since it uses less digits than its factorization.

180243012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15020258 (or 15020256 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 180243012 is about 13425.4613328556. The cubic root of 180243012 is about 564.8755953421.

Adding to 180243012 its reverse (210342081), we get a palindrome (390585093).

The spelling of 180243012 in words is "one hundred eighty million, two hundred forty-three thousand, twelve".