20236163 has 2 divisors, whose sum is σ = 20236164. Its totient is φ = 20236162.

The previous prime is 20236157. The next prime is 20236189. The reversal of 20236163 is 36163202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20236163 - 2¹⁶ = 20170627 is a prime.

It is not a weakly prime, because it can be changed into another prime (20236123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10118081 + 10118082.

It is an arithmetic number, because the mean of its divisors is an integer number (10118082).

Almost surely, 2^20236163 is an apocalyptic number.

20236163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20236163 is an equidigital number, since it uses as much as digits as its factorization.

20236163 is an evil number, because the sum of its binary digits is even.

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

The square root of 20236163 is about 4498.4622928285. The cubic root of 20236163 is about 272.5059920687.

Adding to 20236163 its reverse (36163202), we get a palindrome (56399365).

The spelling of 20236163 in words is "twenty million, two hundred thirty-six thousand, one hundred sixty-three".