163878252 has 12 divisors (see below), whose sum is σ = 382382616. Its totient is φ = 54626080.

The previous prime is 163878227. The next prime is 163878263. The reversal of 163878252 is 252878361.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 6828249 + ... + 6828272.

It is an arithmetic number, because the mean of its divisors is an integer number (31865218).

Almost surely, 2^163878252 is an apocalyptic number.

163878252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163878252 is an abundant number, since it is smaller than the sum of its proper divisors (218504364).

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

163878252 is a wasteful number, since it uses less digits than its factorization.

163878252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13656528 (or 13656526 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 163878252 is about 12801.4941315457. The cubic root of 163878252 is about 547.2348842582.

The spelling of 163878252 in words is "one hundred sixty-three million, eight hundred seventy-eight thousand, two hundred fifty-two".