33113133 has 6 divisors (see below), whose sum is σ = 47830094. Its totient is φ = 22075416.

The previous prime is 33113131. The next prime is 33113149. The reversal of 33113133 is 33131133.

It can be written as a sum of positive squares in only one way, i.e., 18688329 + 14424804 = 4323^2 + 3798^2 .

It is not a de Polignac number, because 33113133 - 2¹ = 33113131 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33113131) 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 5 ways as a sum of consecutive naturals, for example, 1839610 + ... + 1839627.

Almost surely, 2^33113133 is an apocalyptic number.

It is an amenable number.

33113133 is a deficient number, since it is larger than the sum of its proper divisors (14716961).

33113133 is a wasteful number, since it uses less digits than its factorization.

33113133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679243 (or 3679240 counting only the distinct ones).

The product of its digits is 243, while the sum is 18.

The square root of 33113133 is about 5754.4011851799. The cubic root of 33113133 is about 321.1195583408.

Adding to 33113133 its reverse (33131133), we get a palindrome (66244266).

The spelling of 33113133 in words is "thirty-three million, one hundred thirteen thousand, one hundred thirty-three".