133101200 has 60 divisors (see below), whose sum is σ = 321223860. Its totient is φ = 52999680.

The previous prime is 133101193. The next prime is 133101203. The reversal of 133101200 is 2101331.

It can be written as a sum of positive squares in 6 ways, for example, as 9535744 + 123565456 = 3088^2 + 11116^2 .

It is not an unprimeable number, because it can be changed into a prime (133101203) 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 11 ways as a sum of consecutive naturals, for example, 106982 + ... + 108218.

It is an arithmetic number, because the mean of its divisors is an integer number (5353731).

Almost surely, 2^133101200 is an apocalyptic number.

133101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133101200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160611930).

133101200 is an abundant number, since it is smaller than the sum of its proper divisors (188122660).

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

133101200 is a wasteful number, since it uses less digits than its factorization.

133101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 133101200 is about 11536.9493368048. The cubic root of 133101200 is about 510.5763061023.

Adding to 133101200 its reverse (2101331), we get a palindrome (135202531).

The spelling of 133101200 in words is "one hundred thirty-three million, one hundred one thousand, two hundred".