228171071 has 4 divisors (see below), whose sum is σ = 228430944. Its totient is φ = 227911200.

The previous prime is 228171061. The next prime is 228171077. The reversal of 228171071 is 170171822.

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

It is a cyclic number.

It is not a de Polignac number, because 228171071 - 2⁶ = 228171007 is a prime.

It is a super-3 number, since 3×228171071³ (a number of 26 digits) contains 333 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 (228171077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128615 + ... + 130376.

It is an arithmetic number, because the mean of its divisors is an integer number (57107736).

Almost surely, 2^228171071 is an apocalyptic number.

228171071 is a deficient number, since it is larger than the sum of its proper divisors (259873).

228171071 is an equidigital number, since it uses as much as digits as its factorization.

228171071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259872.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 228171071 is about 15105.3325352340. The cubic root of 228171071 is about 611.0642275131.

The spelling of 228171071 in words is "two hundred twenty-eight million, one hundred seventy-one thousand, seventy-one".