133422208 has 32 divisors (see below), whose sum is σ = 267750000. Its totient is φ = 66222336.

The previous prime is 133422203. The next prime is 133422217. The reversal of 133422208 is 802224331.

133422208 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (133422203) 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, 14043 + ... + 21541.

Almost surely, 2^133422208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133422208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133875000).

133422208 is an abundant number, since it is smaller than the sum of its proper divisors (134327792).

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

133422208 is an equidigital number, since it uses as much as digits as its factorization.

133422208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7652 (or 7640 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 133422208 is about 11550.8531286654. The cubic root of 133422208 is about 510.9864388771.

Adding to 133422208 its reverse (802224331), we get a palindrome (935646539).

The spelling of 133422208 in words is "one hundred thirty-three million, four hundred twenty-two thousand, two hundred eight".