201133217 has 2 divisors, whose sum is σ = 201133218. Its totient is φ = 201133216.

The previous prime is 201133193. The next prime is 201133243. The reversal of 201133217 is 712331102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175721536 + 25411681 = 13256^2 + 5041^2 .

It is a cyclic number.

It is not a de Polignac number, because 201133217 - 2⁸ = 201132961 is a prime.

It is not a weakly prime, because it can be changed into another prime (201133717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100566608 + 100566609.

It is an arithmetic number, because the mean of its divisors is an integer number (100566609).

Almost surely, 2^201133217 is an apocalyptic number.

It is an amenable number.

201133217 is a deficient number, since it is larger than the sum of its proper divisors (1).

201133217 is an equidigital number, since it uses as much as digits as its factorization.

201133217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 201133217 is about 14182.1443019030. The cubic root of 201133217 is about 585.9059836280.

Adding to 201133217 its reverse (712331102), we get a palindrome (913464319).

The spelling of 201133217 in words is "two hundred one million, one hundred thirty-three thousand, two hundred seventeen".