133033121 has 16 divisors (see below), whose sum is σ = 153000960. Its totient is φ = 114730560.

The previous prime is 133033097. The next prime is 133033181. The reversal of 133033121 is 121330331.

It is a cyclic number.

It is not a de Polignac number, because 133033121 - 2⁶ = 133033057 is a prime.

It is a super-2 number, since 2×133033121² = 35395622566001282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133033121.

It is not an unprimeable number, because it can be changed into a prime (133033181) 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 15 ways as a sum of consecutive naturals, for example, 5996 + ... + 17378.

It is an arithmetic number, because the mean of its divisors is an integer number (9562560).

Almost surely, 2^133033121 is an apocalyptic number.

It is an amenable number.

133033121 is a deficient number, since it is larger than the sum of its proper divisors (19967839).

133033121 is a wasteful number, since it uses less digits than its factorization.

133033121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11456.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133033121 is about 11533.9984827466. The cubic root of 133033121 is about 510.4892408910.

Adding to 133033121 its reverse (121330331), we get a palindrome (254363452).

The spelling of 133033121 in words is "one hundred thirty-three million, thirty-three thousand, one hundred twenty-one".