133065330 has 64 divisors (see below), whose sum is σ = 331776000. Its totient is φ = 34119360.

The previous prime is 133065329. The next prime is 133065337. The reversal of 133065330 is 33560331.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133065330.

It is not an unprimeable number, because it can be changed into a prime (133065337) 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 31 ways as a sum of consecutive naturals, for example, 184711 + ... + 185429.

It is an arithmetic number, because the mean of its divisors is an integer number (5184000).

Almost surely, 2^133065330 is an apocalyptic number.

133065330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133065330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165888000).

133065330 is an abundant number, since it is smaller than the sum of its proper divisors (198710670).

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

133065330 is a wasteful number, since it uses less digits than its factorization.

133065330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 2430, while the sum is 24.

The square root of 133065330 is about 11535.3946616490. The cubic root of 133065330 is about 510.5304361989.

The spelling of 133065330 in words is "one hundred thirty-three million, sixty-five thousand, three hundred thirty".