228110231 has 4 divisors (see below), whose sum is σ = 228271512. Its totient is φ = 227948952.

The previous prime is 228110221. The next prime is 228110237. The reversal of 228110231 is 132011822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132011822 = 2 ⋅66005911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228110231 is a prime.

It is a super-2 number, since 2×228110231² = 104068554973746722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228110237) 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, 78500 + ... + 81353.

It is an arithmetic number, because the mean of its divisors is an integer number (57067878).

Almost surely, 2^228110231 is an apocalyptic number.

228110231 is a deficient number, since it is larger than the sum of its proper divisors (161281).

228110231 is a wasteful number, since it uses less digits than its factorization.

228110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161280.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 228110231 is about 15103.3185426250. The cubic root of 228110231 is about 611.0099108809.

The spelling of 228110231 in words is "two hundred twenty-eight million, one hundred ten thousand, two hundred thirty-one".