133065533 has 4 divisors (see below), whose sum is σ = 133221660. Its totient is φ = 132909408.

The previous prime is 133065487. The next prime is 133065553. The reversal of 133065533 is 335560331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52461049 + 80604484 = 7243^2 + 8978^2 .

It is a cyclic number.

It is not a de Polignac number, because 133065533 - 2¹⁰ = 133064509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133065496 and 133065505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133065553) 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 3 ways as a sum of consecutive naturals, for example, 76778 + ... + 78491.

It is an arithmetic number, because the mean of its divisors is an integer number (33305415).

Almost surely, 2^133065533 is an apocalyptic number.

It is an amenable number.

133065533 is a deficient number, since it is larger than the sum of its proper divisors (156127).

133065533 is an equidigital number, since it uses as much as digits as its factorization.

133065533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156126.

The product of its (nonzero) digits is 12150, while the sum is 29.

The square root of 133065533 is about 11535.4034606510. The cubic root of 133065533 is about 510.5306958148.

The spelling of 133065533 in words is "one hundred thirty-three million, sixty-five thousand, five hundred thirty-three".