113128208 has 20 divisors (see below), whose sum is σ = 220767120. Its totient is φ = 56156064.

The previous prime is 113128199. The next prime is 113128247. The reversal of 113128208 is 802821311.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23210 + ... + 27657.

It is an arithmetic number, because the mean of its divisors is an integer number (11038356).

Almost surely, 2^113128208 is an apocalyptic number.

It is an amenable number.

113128208 is a deficient number, since it is larger than the sum of its proper divisors (107638912).

113128208 is a wasteful number, since it uses less digits than its factorization.

113128208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51014 (or 51008 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 113128208 is about 10636.1745002609. The cubic root of 113128208 is about 483.6415851609.

Adding to 113128208 its reverse (802821311), we get a palindrome (915949519).

The spelling of 113128208 in words is "one hundred thirteen million, one hundred twenty-eight thousand, two hundred eight".