163505106 has 48 divisors (see below), whose sum is σ = 362703744. Its totient is φ = 53213472.

The previous prime is 163505101. The next prime is 163505117. The reversal of 163505106 is 601505361.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163505106.

It is not an unprimeable number, because it can be changed into a prime (163505101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349885 + ... + 350351.

It is an arithmetic number, because the mean of its divisors is an integer number (7556328).

Almost surely, 2^163505106 is an apocalyptic number.

163505106 is an abundant number, since it is smaller than the sum of its proper divisors (199198638).

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

163505106 is a wasteful number, since it uses less digits than its factorization.

163505106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 163505106 is about 12786.9115113854. The cubic root of 163505106 is about 546.8192226585.

The spelling of 163505106 in words is "one hundred sixty-three million, five hundred five thousand, one hundred six".