113120225 has 12 divisors (see below), whose sum is σ = 140483196. Its totient is φ = 90358080.

The previous prime is 113120221. The next prime is 113120237. The reversal of 113120225 is 522021311.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3268864 + 109851361 = 1808^2 + 10481^2 .

It is not a de Polignac number, because 113120225 - 2² = 113120221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113120221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15239 + ... + 21411.

It is an arithmetic number, because the mean of its divisors is an integer number (11706933).

Almost surely, 2^113120225 is an apocalyptic number.

It is an amenable number.

113120225 is a deficient number, since it is larger than the sum of its proper divisors (27362971).

113120225 is an equidigital number, since it uses as much as digits as its factorization.

113120225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6916 (or 6911 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 113120225 is about 10635.7992177363. The cubic root of 113120225 is about 483.6302086833.

Adding to 113120225 its reverse (522021311), we get a palindrome (635141536).

The spelling of 113120225 in words is "one hundred thirteen million, one hundred twenty thousand, two hundred twenty-five".