133573106533 has 4 divisors (see below), whose sum is σ = 139380632928. Its totient is φ = 127765580140.

The previous prime is 133573106501. The next prime is 133573106551. The reversal of 133573106533 is 335601375331.

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: 335601375331 = 66841 ⋅5020891.

It is a cyclic number.

It is not a de Polignac number, because 133573106533 - 2⁵ = 133573106501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133573106033) 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, 2903763163 + ... + 2903763208.

It is an arithmetic number, because the mean of its divisors is an integer number (34845158232).

Almost surely, 2^133573106533 is an apocalyptic number.

It is an amenable number.

133573106533 is a deficient number, since it is larger than the sum of its proper divisors (5807526395).

133573106533 is an equidigital number, since it uses as much as digits as its factorization.

133573106533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807526394.

The product of its (nonzero) digits is 255150, while the sum is 40.

The spelling of 133573106533 in words is "one hundred thirty-three billion, five hundred seventy-three million, one hundred six thousand, five hundred thirty-three".