112145225 has 6 divisors (see below), whose sum is σ = 139060110. Its totient is φ = 89716160.

The previous prime is 112145221. The next prime is 112145273. The reversal of 112145225 is 522541211.

It can be written as a sum of positive squares in 3 ways, for example, as 10316944 + 101828281 = 3212^2 + 10091^2 .

It is not a de Polignac number, because 112145225 - 2² = 112145221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112145225.

It is not an unprimeable number, because it can be changed into a prime (112145221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2242880 + ... + 2242929.

It is an arithmetic number, because the mean of its divisors is an integer number (23176685).

Almost surely, 2^112145225 is an apocalyptic number.

It is an amenable number.

112145225 is a deficient number, since it is larger than the sum of its proper divisors (26914885).

112145225 is an equidigital number, since it uses as much as digits as its factorization.

112145225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4485819 (or 4485814 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 112145225 is about 10589.8642578647. The cubic root of 112145225 is about 482.2367038693.

Adding to 112145225 its reverse (522541211), we get a palindrome (634686436).

The spelling of 112145225 in words is "one hundred twelve million, one hundred forty-five thousand, two hundred twenty-five".