133030220 has 24 divisors (see below), whose sum is σ = 280098000. Its totient is φ = 53072192.

The previous prime is 133030217. The next prime is 133030243. The reversal of 133030220 is 22030331.

133030220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 133030195 and 133030204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770 + ... + 16329.

It is an arithmetic number, because the mean of its divisors is an integer number (11670750).

Almost surely, 2^133030220 is an apocalyptic number.

133030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133030220 is an abundant number, since it is smaller than the sum of its proper divisors (147067780).

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

133030220 is a wasteful number, since it uses less digits than its factorization.

133030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17497 (or 17495 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 133030220 is about 11533.8727234178. The cubic root of 133030220 is about 510.4855301858.

Adding to 133030220 its reverse (22030331), we get a palindrome (155060551).

The spelling of 133030220 in words is "one hundred thirty-three million, thirty thousand, two hundred twenty".