163278 has 24 divisors (see below), whose sum is σ = 363168. Its totient is φ = 52992.

The previous prime is 163259. The next prime is 163307. The reversal of 163278 is 872361.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750 + ... + 942.

It is an arithmetic number, because the mean of its divisors is an integer number (15132).

2¹⁶³²⁷⁸ is an apocalyptic number.

163278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

163278 is an abundant number, since it is smaller than the sum of its proper divisors (199890).

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

163278 is a wasteful number, since it uses less digits than its factorization.

163278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 245 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 163278 is about 404.0767253876. The cubic root of 163278 is about 54.6565930939.

It can be divided in two parts, 163 and 278, that added together give a square (441 = 21²).

The spelling of 163278 in words is "one hundred sixty-three thousand, two hundred seventy-eight".