20332133 has 2 divisors, whose sum is σ = 20332134. Its totient is φ = 20332132.

The previous prime is 20332099. The next prime is 20332159. The reversal of 20332133 is 33123302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19377604 + 954529 = 4402^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332133 - 2¹⁰ = 20331109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20332183) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166066 + 10166067.

It is an arithmetic number, because the mean of its divisors is an integer number (10166067).

Almost surely, 2^20332133 is an apocalyptic number.

It is an amenable number.

20332133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332133 is an equidigital number, since it uses as much as digits as its factorization.

20332133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 20332133 is about 4509.1166540687. The cubic root of 20332133 is about 272.9360993978.

Adding to 20332133 its reverse (33123302), we get a palindrome (53455435).

The spelling of 20332133 in words is "twenty million, three hundred thirty-two thousand, one hundred thirty-three".