113404225 has 18 divisors (see below), whose sum is σ = 154571270. Its totient is φ = 82473600.

The previous prime is 113404199. The next prime is 113404273. The reversal of 113404225 is 522404311.

It can be written as a sum of positive squares in 3 ways, for example, as 27415696 + 85988529 = 5236^2 + 9273^2 .

It is not a de Polignac number, because 113404225 - 2⁷ = 113404097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113404196 and 113404205.

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 17 ways as a sum of consecutive naturals, for example, 15720 + ... + 21769.

Almost surely, 2^113404225 is an apocalyptic number.

It is an amenable number.

113404225 is a deficient number, since it is larger than the sum of its proper divisors (41167045).

113404225 is a wasteful number, since it uses less digits than its factorization.

113404225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37521 (or 37505 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 113404225 is about 10649.1419842164. The cubic root of 113404225 is about 484.0346049638.

Adding to 113404225 its reverse (522404311), we get a palindrome (635808536).

The spelling of 113404225 in words is "one hundred thirteen million, four hundred four thousand, two hundred twenty-five".