18528163 has 2 divisors, whose sum is σ = 18528164. Its totient is φ = 18528162.

The previous prime is 18528143. The next prime is 18528197. The reversal of 18528163 is 36182581.

It is an a-pointer prime, because the next prime (18528197) can be obtained adding 18528163 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (36182581) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18528163 is a prime.

It is not a weakly prime, because it can be changed into another prime (18528143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9264081 + 9264082.

It is an arithmetic number, because the mean of its divisors is an integer number (9264082).

Almost surely, 2^18528163 is an apocalyptic number.

18528163 is a deficient number, since it is larger than the sum of its proper divisors (1).

18528163 is an equidigital number, since it uses as much as digits as its factorization.

18528163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 18528163 is about 4304.4352707411. The cubic root of 18528163 is about 264.6127630039.

The spelling of 18528163 in words is "eighteen million, five hundred twenty-eight thousand, one hundred sixty-three".