33132213 has 16 divisors (see below), whose sum is σ = 51219840. Its totient is φ = 21127392.

The previous prime is 33132163. The next prime is 33132241. The reversal of 33132213 is 31223133.

33132213 is a `hidden beast` number, since 331 + 322 + 13 = 666.

It is not a de Polignac number, because 33132213 - 2¹⁴ = 33115829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33132013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26056 + ... + 27297.

It is an arithmetic number, because the mean of its divisors is an integer number (3201240).

Almost surely, 2^33132213 is an apocalyptic number.

It is an amenable number.

33132213 is a deficient number, since it is larger than the sum of its proper divisors (18087627).

33132213 is a wasteful number, since it uses less digits than its factorization.

33132213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53385 (or 53379 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 33132213 is about 5756.0588078997. The cubic root of 33132213 is about 321.1812235493.

Adding to 33132213 its reverse (31223133), we get a palindrome (64355346).

The spelling of 33132213 in words is "thirty-three million, one hundred thirty-two thousand, two hundred thirteen".