180545080 has 16 divisors (see below), whose sum is σ = 406226520. Its totient is φ = 72218016.

The previous prime is 180545069. The next prime is 180545081. The reversal of 180545080 is 80545081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180545081) 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, 2256774 + ... + 2256853.

Almost surely, 2^180545080 is an apocalyptic number.

180545080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180545080 is an abundant number, since it is smaller than the sum of its proper divisors (225681440).

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

180545080 is a wasteful number, since it uses less digits than its factorization.

180545080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513638 (or 4513634 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 180545080 is about 13436.7064416843. The cubic root of 180545080 is about 565.1909762426.

Subtracting from 180545080 its reverse (80545081), we obtain a palindrome (99999999).

The spelling of 180545080 in words is "one hundred eighty million, five hundred forty-five thousand, eighty".