33135135233 has 4 divisors (see below), whose sum is σ = 33149949780. Its totient is φ = 33120320688.

The previous prime is 33135135221. The next prime is 33135135247. The reversal of 33135135233 is 33253153133.

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 15639253249 + 17495881984 = 125057^2 + 132272^2 .

It is a cyclic number.

It is not a de Polignac number, because 33135135233 - 2¹⁰ = 33135134209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33135135233.

It is not an unprimeable number, because it can be changed into a prime (33135135283) 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, 7403918 + ... + 7408391.

It is an arithmetic number, because the mean of its divisors is an integer number (8287487445).

Almost surely, 2^33135135233 is an apocalyptic number.

It is an amenable number.

33135135233 is a deficient number, since it is larger than the sum of its proper divisors (14814547).

33135135233 is a wasteful number, since it uses less digits than its factorization.

33135135233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14814546.

The product of its digits is 36450, while the sum is 32.

Adding to 33135135233 its reverse (33253153133), we get a palindrome (66388288366).

The spelling of 33135135233 in words is "thirty-three billion, one hundred thirty-five million, one hundred thirty-five thousand, two hundred thirty-three".