228113365 has 4 divisors (see below), whose sum is σ = 273736044. Its totient is φ = 182490688.

The previous prime is 228113363. The next prime is 228113371. The reversal of 228113365 is 563311822.

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 137311524 + 90801841 = 11718^2 + 9529^2 .

It is a cyclic number.

It is not a de Polignac number, because 228113365 - 2¹ = 228113363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228113363) 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, 22811332 + ... + 22811341.

It is an arithmetic number, because the mean of its divisors is an integer number (68434011).

Almost surely, 2^228113365 is an apocalyptic number.

It is an amenable number.

228113365 is a deficient number, since it is larger than the sum of its proper divisors (45622679).

228113365 is an equidigital number, since it uses as much as digits as its factorization.

228113365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45622678.

The product of its digits is 8640, while the sum is 31.

The square root of 228113365 is about 15103.4222943014. The cubic root of 228113365 is about 611.0127090841.

The spelling of 228113365 in words is "two hundred twenty-eight million, one hundred thirteen thousand, three hundred sixty-five".