228368113 has 4 divisors (see below), whose sum is σ = 229527540. Its totient is φ = 227208688.

The previous prime is 228368111. The next prime is 228368197. The reversal of 228368113 is 311863822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189530289 + 38837824 = 13767^2 + 6232^2 .

It is a cyclic number.

It is not a de Polignac number, because 228368113 - 2¹ = 228368111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228368111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579418 + ... + 579811.

It is an arithmetic number, because the mean of its divisors is an integer number (57381885).

Almost surely, 2^228368113 is an apocalyptic number.

It is an amenable number.

228368113 is a deficient number, since it is larger than the sum of its proper divisors (1159427).

228368113 is a wasteful number, since it uses less digits than its factorization.

228368113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159426.

The product of its digits is 13824, while the sum is 34.

The square root of 228368113 is about 15111.8533939421. The cubic root of 228368113 is about 611.2400760904.

The spelling of 228368113 in words is "two hundred twenty-eight million, three hundred sixty-eight thousand, one hundred thirteen".