133033243 has 8 divisors (see below), whose sum is σ = 152387840. Its totient is φ = 113766120.

The previous prime is 133033217. The next prime is 133033247. The reversal of 133033243 is 342330331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133033243 - 2¹⁷ = 132902171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133033247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18573 + ... + 24718.

It is an arithmetic number, because the mean of its divisors is an integer number (19048480).

Almost surely, 2^133033243 is an apocalyptic number.

133033243 is a deficient number, since it is larger than the sum of its proper divisors (19354597).

133033243 is an equidigital number, since it uses as much as digits as its factorization.

133033243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43737.

The product of its (nonzero) digits is 1944, while the sum is 22.

The square root of 133033243 is about 11534.0037714577. The cubic root of 133033243 is about 510.4893969415.

Adding to 133033243 its reverse (342330331), we get a palindrome (475363574).

The spelling of 133033243 in words is "one hundred thirty-three million, thirty-three thousand, two hundred forty-three".