163504 has 20 divisors (see below), whose sum is σ = 345960. Its totient is φ = 74240.

The previous prime is 163487. The next prime is 163517. The reversal of 163504 is 405361.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289 + ... + 640.

It is an arithmetic number, because the mean of its divisors is an integer number (17298).

2¹⁶³⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

163504 is an abundant number, since it is smaller than the sum of its proper divisors (182456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163504 is a wasteful number, since it uses less digits than its factorization.

163504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 942 counting only the distinct ones).

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

The square root of 163504 is about 404.3562785465. The cubic root of 163504 is about 54.6817989703.

Adding to 163504 its reverse (405361), we get a palindrome (568865).

The spelling of 163504 in words is "one hundred sixty-three thousand, five hundred four".