20454163 has 2 divisors, whose sum is σ = 20454164. Its totient is φ = 20454162.

The previous prime is 20454157. The next prime is 20454169. The reversal of 20454163 is 36145402.

It is a balanced prime because it is at equal distance from previous prime (20454157) and next prime (20454169).

It is a cyclic number.

It is not a de Polignac number, because 20454163 - 2¹⁷ = 20323091 is a prime.

It is not a weakly prime, because it can be changed into another prime (20454169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10227081 + 10227082.

It is an arithmetic number, because the mean of its divisors is an integer number (10227082).

Almost surely, 2^20454163 is an apocalyptic number.

20454163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20454163 is an equidigital number, since it uses as much as digits as its factorization.

20454163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20454163 is about 4522.6278865279. The cubic root of 20454163 is about 273.4810492792.

Adding to 20454163 its reverse (36145402), we get a palindrome (56599565).

The spelling of 20454163 in words is "twenty million, four hundred fifty-four thousand, one hundred sixty-three".