163330003 has 4 divisors (see below), whose sum is σ = 163919920. Its totient is φ = 162740088.

The previous prime is 163329997. The next prime is 163330049. The reversal of 163330003 is 300033361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163330003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163330073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294543 + ... + 295096.

It is an arithmetic number, because the mean of its divisors is an integer number (40979980).

Almost surely, 2^163330003 is an apocalyptic number.

163330003 is a deficient number, since it is larger than the sum of its proper divisors (589917).

163330003 is an equidigital number, since it uses as much as digits as its factorization.

163330003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589916.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 163330003 is about 12780.0627150261. The cubic root of 163330003 is about 546.6239506993.

Adding to 163330003 its reverse (300033361), we get a palindrome (463363364).

The spelling of 163330003 in words is "one hundred sixty-three million, three hundred thirty thousand, three".