163107328 has 20 divisors (see below), whose sum is σ = 325897110. Its totient is φ = 81553408.

The previous prime is 163107323. The next prime is 163107353. The reversal of 163107328 is 823701361.

It can be written as a sum of positive squares in only one way, i.e., 93083904 + 70023424 = 9648^2 + 8368^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163107328.

It is not an unprimeable number, because it can be changed into a prime (163107323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158773 + ... + 159796.

Almost surely, 2^163107328 is an apocalyptic number.

It is an amenable number.

163107328 is a deficient number, since it is larger than the sum of its proper divisors (162789782).

163107328 is an frugal number, since it uses more digits than its factorization.

163107328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318587 (or 318571 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 163107328 is about 12771.3479319921. The cubic root of 163107328 is about 546.3754255393.

Adding to 163107328 its reverse (823701361), we get a palindrome (986808689).

The spelling of 163107328 in words is "one hundred sixty-three million, one hundred seven thousand, three hundred twenty-eight".