133223020 has 48 divisors (see below), whose sum is σ = 320544000. Its totient is φ = 45561024.

The previous prime is 133223009. The next prime is 133223039. The reversal of 133223020 is 20322331.

133223020 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 = 133222985 and 133223003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68907 + ... + 70813.

It is an arithmetic number, because the mean of its divisors is an integer number (6678000).

Almost surely, 2^133223020 is an apocalyptic number.

133223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133223020 is an abundant number, since it is smaller than the sum of its proper divisors (187320980).

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

133223020 is a wasteful number, since it uses less digits than its factorization.

133223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 133223020 is about 11542.2276879292. The cubic root of 133223020 is about 510.7320258096.

Adding to 133223020 its reverse (20322331), we get a palindrome (153545351).

The spelling of 133223020 in words is "one hundred thirty-three million, two hundred twenty-three thousand, twenty".