201009163 has 2 divisors, whose sum is σ = 201009164. Its totient is φ = 201009162.

The previous prime is 201009161. The next prime is 201009191. The reversal of 201009163 is 361900102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201009163 - 2¹ = 201009161 is a prime.

Together with 201009161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (201009161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100504581 + 100504582.

It is an arithmetic number, because the mean of its divisors is an integer number (100504582).

Almost surely, 2^201009163 is an apocalyptic number.

201009163 is a deficient number, since it is larger than the sum of its proper divisors (1).

201009163 is an equidigital number, since it uses as much as digits as its factorization.

201009163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 201009163 is about 14177.7700291689. The cubic root of 201009163 is about 585.7855014084.

Adding to 201009163 its reverse (361900102), we get a palindrome (562909265).

The spelling of 201009163 in words is "two hundred one million, nine thousand, one hundred sixty-three".