133622368 has 48 divisors (see below), whose sum is σ = 289154880. Its totient is φ = 60278400.

The previous prime is 133622317. The next prime is 133622389. The reversal of 133622368 is 863226331.

133622368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 47563 + ... + 50293.

It is an arithmetic number, because the mean of its divisors is an integer number (6024060).

Almost surely, 2^133622368 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 133622368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144577440).

133622368 is an abundant number, since it is smaller than the sum of its proper divisors (155532512).

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

133622368 is a wasteful number, since it uses less digits than its factorization.

133622368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891 (or 2883 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 133622368 is about 11559.5141766425. The cubic root of 133622368 is about 511.2418384925.

Adding to 133622368 its reverse (863226331), we get a palindrome (996848699).

The spelling of 133622368 in words is "one hundred thirty-three million, six hundred twenty-two thousand, three hundred sixty-eight".