228047171 has 8 divisors (see below), whose sum is σ = 249706800. Its totient is φ = 206542240.

The previous prime is 228047161. The next prime is 228047173. The reversal of 228047171 is 171740822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228047171 - 2⁶ = 228047107 is a prime.

It is a super-2 number, since 2×228047171² = 104011024402206482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228047173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35576 + ... + 41493.

It is an arithmetic number, because the mean of its divisors is an integer number (31213350).

Almost surely, 2^228047171 is an apocalyptic number.

228047171 is a deficient number, since it is larger than the sum of its proper divisors (21659629).

228047171 is a wasteful number, since it uses less digits than its factorization.

228047171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77349.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 228047171 is about 15101.2307776552. The cubic root of 228047171 is about 610.9536020869.

Adding to 228047171 its reverse (171740822), we get a palindrome (399787993).

The spelling of 228047171 in words is "two hundred twenty-eight million, forty-seven thousand, one hundred seventy-one".