163278148 has 48 divisors (see below), whose sum is σ = 319334400. Its totient is φ = 72427680.

The previous prime is 163278133. The next prime is 163278161. The reversal of 163278148 is 841872361.

It is a super-3 number, since 3×163278148³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 163278148.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371713 + ... + 372151.

It is an arithmetic number, because the mean of its divisors is an integer number (6652800).

Almost surely, 2^163278148 is an apocalyptic number.

It is an amenable number.

163278148 is a deficient number, since it is larger than the sum of its proper divisors (156056252).

163278148 is a wasteful number, since it uses less digits than its factorization.

163278148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 638 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 163278148 is about 12778.0338080630. The cubic root of 163278148 is about 546.5660960804.

The spelling of 163278148 in words is "one hundred sixty-three million, two hundred seventy-eight thousand, one hundred forty-eight".