228162471 has 4 divisors (see below), whose sum is σ = 304216632. Its totient is φ = 152108312.

The previous prime is 228162439. The next prime is 228162521. The reversal of 228162471 is 174261822.

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 228162471 - 2⁵ = 228162439 is a prime.

It is a super-3 number, since 3×228162471³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228162421) 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, 38027076 + ... + 38027081.

It is an arithmetic number, because the mean of its divisors is an integer number (76054158).

Almost surely, 2^228162471 is an apocalyptic number.

228162471 is a deficient number, since it is larger than the sum of its proper divisors (76054161).

228162471 is an equidigital number, since it uses as much as digits as its factorization.

228162471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76054160.

The product of its digits is 10752, while the sum is 33.

The square root of 228162471 is about 15105.0478648695. The cubic root of 228162471 is about 611.0565502057.

The spelling of 228162471 in words is "two hundred twenty-eight million, one hundred sixty-two thousand, four hundred seventy-one".