133300000 has 144 divisors (see below), whose sum is σ = 346477824. Its totient is φ = 50400000.

The previous prime is 133299977. The next prime is 133300001. The reversal of 133300000 is 3331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 133300000.

It is not an unprimeable number, because it can be changed into a prime (133300001) 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 23 ways as a sum of consecutive naturals, for example, 3099979 + ... + 3100021.

It is an arithmetic number, because the mean of its divisors is an integer number (2406096).

Almost surely, 2^133300000 is an apocalyptic number.

133300000 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 133300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173238912).

133300000 is an abundant number, since it is smaller than the sum of its proper divisors (213177824).

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

133300000 is an frugal number, since it uses more digits than its factorization.

133300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 10.

The square root of 133300000 is about 11545.5619178973. The cubic root of 133300000 is about 510.8303786346.

Adding to 133300000 its reverse (3331), we get a palindrome (133303331).

The spelling of 133300000 in words is "one hundred thirty-three million, three hundred thousand".