133302320 has 20 divisors (see below), whose sum is σ = 309928080. Its totient is φ = 53320896.

The previous prime is 133302317. The next prime is 133302341. The reversal of 133302320 is 23203331.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833060 + ... + 833219.

It is an arithmetic number, because the mean of its divisors is an integer number (15496404).

Almost surely, 2^133302320 is an apocalyptic number.

133302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133302320 is an abundant number, since it is smaller than the sum of its proper divisors (176625760).

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

133302320 is a wasteful number, since it uses less digits than its factorization.

133302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666292 (or 1666286 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 133302320 is about 11545.6623889667. The cubic root of 133302320 is about 510.8333421745.

Adding to 133302320 its reverse (23203331), we get a palindrome (156505651).

The spelling of 133302320 in words is "one hundred thirty-three million, three hundred two thousand, three hundred twenty".