163316003 has 2 divisors, whose sum is σ = 163316004. Its totient is φ = 163316002.

The previous prime is 163315987. The next prime is 163316009. The reversal of 163316003 is 300613361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163316003 - 2⁴ = 163315987 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163316003.

It is not a weakly prime, because it can be changed into another prime (163316009) 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, 81658001 + 81658002.

It is an arithmetic number, because the mean of its divisors is an integer number (81658002).

Almost surely, 2^163316003 is an apocalyptic number.

163316003 is a deficient number, since it is larger than the sum of its proper divisors (1).

163316003 is an equidigital number, since it uses as much as digits as its factorization.

163316003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 163316003 is about 12779.5149751467. The cubic root of 163316003 is about 546.6083321074.

Adding to 163316003 its reverse (300613361), we get a palindrome (463929364).

The spelling of 163316003 in words is "one hundred sixty-three million, three hundred sixteen thousand, three".