163000003 has 2 divisors, whose sum is σ = 163000004. Its totient is φ = 163000002.

The previous prime is 162999959. The next prime is 163000007. The reversal of 163000003 is 300000361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163000003 - 2²¹ = 160902851 is a prime.

It is not a weakly prime, because it can be changed into another prime (163000007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81500001 + 81500002.

It is an arithmetic number, because the mean of its divisors is an integer number (81500002).

Almost surely, 2^163000003 is an apocalyptic number.

163000003 is a deficient number, since it is larger than the sum of its proper divisors (1).

163000003 is an equidigital number, since it uses as much as digits as its factorization.

163000003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 163000003 is about 12767.1454522928. The cubic root of 163000003 is about 546.2555604794.

Adding to 163000003 its reverse (300000361), we get a palindrome (463000364).

The spelling of 163000003 in words is "one hundred sixty-three million, three", and thus it is an aban number.