133325533 has 4 divisors (see below), whose sum is σ = 145446048. Its totient is φ = 121205020.

The previous prime is 133325497. The next prime is 133325537. The reversal of 133325533 is 335523331.

It is a happy number.

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 133325533 - 2⁹ = 133325021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133325537) 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 3 ways as a sum of consecutive naturals, for example, 6060241 + ... + 6060262.

It is an arithmetic number, because the mean of its divisors is an integer number (36361512).

Almost surely, 2^133325533 is an apocalyptic number.

It is an amenable number.

133325533 is a deficient number, since it is larger than the sum of its proper divisors (12120515).

133325533 is a wasteful number, since it uses less digits than its factorization.

133325533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120514.

The product of its digits is 12150, while the sum is 28.

The square root of 133325533 is about 11546.6676145111. The cubic root of 133325533 is about 510.8629922864.

Adding to 133325533 its reverse (335523331), we get a palindrome (468848864).

The spelling of 133325533 in words is "one hundred thirty-three million, three hundred twenty-five thousand, five hundred thirty-three".