133130333 has 4 divisors (see below), whose sum is σ = 152148960. Its totient is φ = 114111708.

The previous prime is 133130323. The next prime is 133130339. The reversal of 133130333 is 333031331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133130333 - 2⁴ = 133130317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133130339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9509303 + ... + 9509316.

It is an arithmetic number, because the mean of its divisors is an integer number (38037240).

Almost surely, 2^133130333 is an apocalyptic number.

It is an amenable number.

133130333 is a deficient number, since it is larger than the sum of its proper divisors (19018627).

133130333 is an equidigital number, since it uses as much as digits as its factorization.

133130333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19018626.

The product of its (nonzero) digits is 729, while the sum is 20.

The square root of 133130333 is about 11538.2118631961. The cubic root of 133130333 is about 510.6135547883.

Adding to 133130333 its reverse (333031331), we get a palindrome (466161664).

The spelling of 133130333 in words is "one hundred thirty-three million, one hundred thirty thousand, three hundred thirty-three".