180520122 has 8 divisors (see below), whose sum is σ = 361040256. Its totient is φ = 60173372.

The previous prime is 180520111. The next prime is 180520129. The reversal of 180520122 is 221025081.

It is a happy number.

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

180520122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (180520129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15043338 + ... + 15043349.

It is an arithmetic number, because the mean of its divisors is an integer number (45130032).

Almost surely, 2^180520122 is an apocalyptic number.

180520122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

180520122 is a wasteful number, since it uses less digits than its factorization.

180520122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30086692.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 180520122 is about 13435.7776849723. Note that the first 3 decimals coincide. The cubic root of 180520122 is about 565.1649316181.

The spelling of 180520122 in words is "one hundred eighty million, five hundred twenty thousand, one hundred twenty-two".