20632163 has 2 divisors, whose sum is σ = 20632164. Its totient is φ = 20632162.

The previous prime is 20632159. The next prime is 20632177. The reversal of 20632163 is 36123602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20632163 - 2² = 20632159 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20632363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10316081 + 10316082.

It is an arithmetic number, because the mean of its divisors is an integer number (10316082).

Almost surely, 2^20632163 is an apocalyptic number.

20632163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20632163 is an equidigital number, since it uses as much as digits as its factorization.

20632163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 20632163 is about 4542.2640830317. The cubic root of 20632163 is about 274.2720715586.

Adding to 20632163 its reverse (36123602), we get a palindrome (56755765).

The spelling of 20632163 in words is "twenty million, six hundred thirty-two thousand, one hundred sixty-three".