133632533 has 4 divisors (see below), whose sum is σ = 134059788. Its totient is φ = 133205280.

The previous prime is 133632523. The next prime is 133632607. The reversal of 133632533 is 335236331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335236331 = 1201 ⋅279131.

It can be written as a sum of positive squares in 2 ways, for example, as 41049649 + 92582884 = 6407^2 + 9622^2 .

It is a cyclic number.

It is not a de Polignac number, because 133632533 - 2⁶ = 133632469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133632496 and 133632505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133632503) 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, 213158 + ... + 213783.

It is an arithmetic number, because the mean of its divisors is an integer number (33514947).

Almost surely, 2^133632533 is an apocalyptic number.

It is an amenable number.

133632533 is a deficient number, since it is larger than the sum of its proper divisors (427255).

133632533 is an equidigital number, since it uses as much as digits as its factorization.

133632533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427254.

The product of its digits is 14580, while the sum is 29.

The square root of 133632533 is about 11559.9538493888. The cubic root of 133632533 is about 511.2548019946.

Adding to 133632533 its reverse (335236331), we get a palindrome (468868864).

The spelling of 133632533 in words is "one hundred thirty-three million, six hundred thirty-two thousand, five hundred thirty-three".