163424603 has 4 divisors (see below), whose sum is σ = 163462920. Its totient is φ = 163386288.

The previous prime is 163424581. The next prime is 163424609. The reversal of 163424603 is 306424361.

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

It is a cyclic number.

It is not a de Polignac number, because 163424603 - 2⁸ = 163424347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163424609) 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, 11825 + ... + 21602.

It is an arithmetic number, because the mean of its divisors is an integer number (40865730).

Almost surely, 2^163424603 is an apocalyptic number.

163424603 is a deficient number, since it is larger than the sum of its proper divisors (38317).

163424603 is an equidigital number, since it uses as much as digits as its factorization.

163424603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38316.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 163424603 is about 12783.7632565689. The cubic root of 163424603 is about 546.7294643719.

Adding to 163424603 its reverse (306424361), we get a palindrome (469848964).

The spelling of 163424603 in words is "one hundred sixty-three million, four hundred twenty-four thousand, six hundred three".