163004005 has 4 divisors (see below), whose sum is σ = 195604812. Its totient is φ = 130403200.

The previous prime is 163004003. The next prime is 163004011. The reversal of 163004005 is 500400361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500400361 = 109 ⋅4590829.

It can be written as a sum of positive squares in 2 ways, for example, as 26604964 + 136399041 = 5158^2 + 11679^2 .

It is not a de Polignac number, because 163004005 - 2¹ = 163004003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163004003) 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, 16300396 + ... + 16300405.

It is an arithmetic number, because the mean of its divisors is an integer number (48901203).

Almost surely, 2^163004005 is an apocalyptic number.

It is an amenable number.

163004005 is a deficient number, since it is larger than the sum of its proper divisors (32600807).

163004005 is an equidigital number, since it uses as much as digits as its factorization.

163004005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32600806.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 163004005 is about 12767.3021817454. The cubic root of 163004005 is about 546.2600310250.

Adding to 163004005 its reverse (500400361), we get a palindrome (663404366).

The spelling of 163004005 in words is "one hundred sixty-three million, four thousand, five".