228047167 has 4 divisors (see below), whose sum is σ = 230933920. Its totient is φ = 225160416.

The previous prime is 228047161. The next prime is 228047173. The reversal of 228047167 is 761740822.

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

It is an interprime number because it is at equal distance from previous prime (228047161) and next prime (228047173).

It is a cyclic number.

It is not a de Polignac number, because 228047167 - 2²³ = 219658559 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 (228047161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443258 + ... + 1443415.

It is an arithmetic number, because the mean of its divisors is an integer number (57733480).

Almost surely, 2^228047167 is an apocalyptic number.

228047167 is a deficient number, since it is larger than the sum of its proper divisors (2886753).

228047167 is an equidigital number, since it uses as much as digits as its factorization.

228047167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886752.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 228047167 is about 15101.2306452156. The cubic root of 228047167 is about 610.9535985148.

Adding to 228047167 its reverse (761740822), we get a palindrome (989787989).

The spelling of 228047167 in words is "two hundred twenty-eight million, forty-seven thousand, one hundred sixty-seven".