133432433 has 4 divisors (see below), whose sum is σ = 133721088. Its totient is φ = 133143780.

The previous prime is 133432417. The next prime is 133432441. The reversal of 133432433 is 334234331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 334234331 = 17 ⋅19660843.

It is a cyclic number.

It is not a de Polignac number, because 133432433 - 2⁴ = 133432417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133432333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143633 + ... + 144558.

It is an arithmetic number, because the mean of its divisors is an integer number (33430272).

Almost surely, 2^133432433 is an apocalyptic number.

It is an amenable number.

133432433 is a deficient number, since it is larger than the sum of its proper divisors (288655).

133432433 is an equidigital number, since it uses as much as digits as its factorization.

133432433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288654.

The product of its digits is 7776, while the sum is 26.

The square root of 133432433 is about 11551.2957281856. The cubic root of 133432433 is about 510.9994919336. Note that the first 3 decimals are identical.

Adding to 133432433 its reverse (334234331), we get a palindrome (467666764).

The spelling of 133432433 in words is "one hundred thirty-three million, four hundred thirty-two thousand, four hundred thirty-three".