112005172 has 24 divisors (see below), whose sum is σ = 198373896. Its totient is φ = 55331328.

The previous prime is 112005169. The next prime is 112005181. The reversal of 112005172 is 271500211.

It can be written as a sum of positive squares in 4 ways, for example, as 364816 + 111640356 = 604^2 + 10566^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171198 + ... + 171850.

It is an arithmetic number, because the mean of its divisors is an integer number (8265579).

Almost surely, 2^112005172 is an apocalyptic number.

It is an amenable number.

112005172 is a deficient number, since it is larger than the sum of its proper divisors (86368724).

112005172 is a wasteful number, since it uses less digits than its factorization.

112005172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 112005172 is about 10583.2495954692. The cubic root of 112005172 is about 482.0358725160.

Adding to 112005172 its reverse (271500211), we get a palindrome (383505383).

The spelling of 112005172 in words is "one hundred twelve million, five thousand, one hundred seventy-two".