163117922 has 18 divisors (see below), whose sum is σ = 269270337. Its totient is φ = 74054200.

The previous prime is 163117919. The next prime is 163117987. The reversal of 163117922 is 229711361.

163117922 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 154231561 + 8886361 = 12419^2 + 2981^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9031.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 198272 + ... + 199092.

Almost surely, 2^163117922 is an apocalyptic number.

163117922 is a deficient number, since it is larger than the sum of its proper divisors (106152415).

163117922 is an frugal number, since it uses more digits than its factorization.

163117922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666 (or 834 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 163117922 is about 12771.7626817914. The cubic root of 163117922 is about 546.3872545111.

Multiplying 163117922 by its sum of digits (32), we get a square (5219773504 = 72248²).

The spelling of 163117922 in words is "one hundred sixty-three million, one hundred seventeen thousand, nine hundred twenty-two".