228711173 has 2 divisors, whose sum is σ = 228711174. Its totient is φ = 228711172.

The previous prime is 228711107. The next prime is 228711187. The reversal of 228711173 is 371117822.

228711173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225690529 + 3020644 = 15023^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 228711173 - 2¹² = 228707077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228711193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114355586 + 114355587.

It is an arithmetic number, because the mean of its divisors is an integer number (114355587).

Almost surely, 2^228711173 is an apocalyptic number.

It is an amenable number.

228711173 is a deficient number, since it is larger than the sum of its proper divisors (1).

228711173 is an equidigital number, since it uses as much as digits as its factorization.

228711173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 32.

The square root of 228711173 is about 15123.1998267562. The cubic root of 228711173 is about 611.5459960717.

Adding to 228711173 its reverse (371117822), we get a palindrome (599828995).

The spelling of 228711173 in words is "two hundred twenty-eight million, seven hundred eleven thousand, one hundred seventy-three".