113403225 has 72 divisors (see below), whose sum is σ = 212397120. Its totient is φ = 53264640.

The previous prime is 113403221. The next prime is 113403299. The reversal of 113403225 is 522304311.

It is not a de Polignac number, because 113403225 - 2² = 113403221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113403221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 291331 + ... + 291719.

It is an arithmetic number, because the mean of its divisors is an integer number (2949960).

Almost surely, 2^113403225 is an apocalyptic number.

113403225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113403225 is a deficient number, since it is larger than the sum of its proper divisors (98993895).

113403225 is a wasteful number, since it uses less digits than its factorization.

113403225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 113403225 is about 10649.0950319734. The cubic root of 113403225 is about 484.0331822183.

Adding to 113403225 its reverse (522304311), we get a palindrome (635707536).

The spelling of 113403225 in words is "one hundred thirteen million, four hundred three thousand, two hundred twenty-five".