33134021 has 4 divisors (see below), whose sum is σ = 33302412. Its totient is φ = 32965632.

The previous prime is 33134011. The next prime is 33134033. The reversal of 33134021 is 12043133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12043133 = 563 ⋅21391.

It can be written as a sum of positive squares in 2 ways, for example, as 21669025 + 11464996 = 4655^2 + 3386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33134021 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 (33134011) 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, 83900 + ... + 84293.

It is an arithmetic number, because the mean of its divisors is an integer number (8325603).

Almost surely, 2^33134021 is an apocalyptic number.

It is an amenable number.

33134021 is a deficient number, since it is larger than the sum of its proper divisors (168391).

33134021 is a wasteful number, since it uses less digits than its factorization.

33134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168390.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 33134021 is about 5756.2158576620. The cubic root of 33134021 is about 321.1870656491.

Adding to 33134021 its reverse (12043133), we get a palindrome (45177154).

The spelling of 33134021 in words is "thirty-three million, one hundred thirty-four thousand, twenty-one".