133144352 has 48 divisors (see below), whose sum is σ = 293715072. Its totient is φ = 58878720.

The previous prime is 133144351. The next prime is 133144379. The reversal of 133144352 is 253441331.

133144352 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (133144351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7913 + ... + 18135.

It is an arithmetic number, because the mean of its divisors is an integer number (6119064).

Almost surely, 2^133144352 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 133144352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146857536).

133144352 is an abundant number, since it is smaller than the sum of its proper divisors (160570720).

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

133144352 is a wasteful number, since it uses less digits than its factorization.

133144352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10281 (or 10273 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 133144352 is about 11538.8193503495. The cubic root of 133144352 is about 510.6314771756.

Adding to 133144352 its reverse (253441331), we get a palindrome (386585683).

The spelling of 133144352 in words is "one hundred thirty-three million, one hundred forty-four thousand, three hundred fifty-two".