163995875 has 8 divisors (see below), whose sum is σ = 204667008. Its totient is φ = 131196600.

The previous prime is 163995857. The next prime is 163995893. The reversal of 163995875 is 578599361.

It is an interprime number because it is at equal distance from previous prime (163995857) and next prime (163995893).

It is not a de Polignac number, because 163995875 - 2¹⁰ = 163994851 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655859 + ... + 656108.

It is an arithmetic number, because the mean of its divisors is an integer number (25583376).

Almost surely, 2^163995875 is an apocalyptic number.

163995875 is a deficient number, since it is larger than the sum of its proper divisors (40671133).

163995875 is an equidigital number, since it uses as much as digits as its factorization.

163995875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311982 (or 1311972 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 53.

The square root of 163995875 is about 12806.0874196610. The cubic root of 163995875 is about 547.3657782081.

The spelling of 163995875 in words is "one hundred sixty-three million, nine hundred ninety-five thousand, eight hundred seventy-five".