180121150 has 24 divisors (see below), whose sum is σ = 365483304. Its totient is φ = 65498400.

The previous prime is 180121127. The next prime is 180121157. The reversal of 180121150 is 51121081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180121157) 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 11 ways as a sum of consecutive naturals, for example, 163197 + ... + 164296.

It is an arithmetic number, because the mean of its divisors is an integer number (15228471).

Almost surely, 2^180121150 is an apocalyptic number.

180121150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180121150 is an abundant number, since it is smaller than the sum of its proper divisors (185362154).

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

180121150 is a wasteful number, since it uses less digits than its factorization.

180121150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327516 (or 327511 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 180121150 is about 13420.9220994684. The cubic root of 180121150 is about 564.7482628252.

The spelling of 180121150 in words is "one hundred eighty million, one hundred twenty-one thousand, one hundred fifty".