163105285 has 8 divisors (see below), whose sum is σ = 223687296. Its totient is φ = 111843600.

The previous prime is 163105279. The next prime is 163105289. The reversal of 163105285 is 582501361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163105285 - 2¹⁷ = 162974213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163105289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2330041 + ... + 2330110.

It is an arithmetic number, because the mean of its divisors is an integer number (27960912).

Almost surely, 2^163105285 is an apocalyptic number.

It is an amenable number.

163105285 is a deficient number, since it is larger than the sum of its proper divisors (60582011).

163105285 is an equidigital number, since it uses as much as digits as its factorization.

163105285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660163.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 163105285 is about 12771.2679480152. The cubic root of 163105285 is about 546.3731443223.

The spelling of 163105285 in words is "one hundred sixty-three million, one hundred five thousand, two hundred eighty-five".