133443200 has 192 divisors, whose sum is σ = 382475520. Its totient is φ = 45465600.

The previous prime is 133443179. The next prime is 133443221. The reversal of 133443200 is 2344331.

It is an interprime number because it is at equal distance from previous prime (133443179) and next prime (133443221).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598289 + ... + 598511.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060).

Almost surely, 2^133443200 is an apocalyptic number.

133443200 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 133443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191237760).

133443200 is an abundant number, since it is smaller than the sum of its proper divisors (249032320).

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

133443200 is a wasteful number, since it uses less digits than its factorization.

133443200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133443200 is about 11551.7617703968. The cubic root of 133443200 is about 511.0132361771.

Adding to 133443200 its reverse (2344331), we get a palindrome (135787531).

The spelling of 133443200 in words is "one hundred thirty-three million, four hundred forty-three thousand, two hundred".