163878752 has 12 divisors (see below), whose sum is σ = 322636356. Its totient is φ = 81939360.

The previous prime is 163878751. The next prime is 163878779. The reversal of 163878752 is 257878361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 163878697 and 163878706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163878751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560574 + ... + 2560637.

It is an arithmetic number, because the mean of its divisors is an integer number (26886363).

Almost surely, 2^163878752 is an apocalyptic number.

It is an amenable number.

163878752 is a deficient number, since it is larger than the sum of its proper divisors (158757604).

163878752 is an equidigital number, since it uses as much as digits as its factorization.

163878752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121221 (or 5121213 counting only the distinct ones).

The product of its digits is 564480, while the sum is 47.

The square root of 163878752 is about 12801.5136605012. The cubic root of 163878752 is about 547.2354408038.

The spelling of 163878752 in words is "one hundred sixty-three million, eight hundred seventy-eight thousand, seven hundred fifty-two".