180144918 has 16 divisors (see below), whose sum is σ = 400322160. Its totient is φ = 60048288.

The previous prime is 180144917. The next prime is 180144919. The reversal of 180144918 is 819441081.

180144918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (180144917) and next prime (180144919).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180144917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1667955 + ... + 1668062.

It is an arithmetic number, because the mean of its divisors is an integer number (25020135).

Almost surely, 2^180144918 is an apocalyptic number.

180144918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

180144918 is an abundant number, since it is smaller than the sum of its proper divisors (220177242).

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

180144918 is a wasteful number, since it uses less digits than its factorization.

180144918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336028 (or 3336022 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 180144918 is about 13421.8075533812. The cubic root of 180144918 is about 564.7731023037.

Adding to 180144918 its reverse (819441081), we get a palindrome (999585999).

The spelling of 180144918 in words is "one hundred eighty million, one hundred forty-four thousand, nine hundred eighteen".