228652271 has 4 divisors (see below), whose sum is σ = 230187000. Its totient is φ = 227117544.

The previous prime is 228652189. The next prime is 228652309. The reversal of 228652271 is 172256822.

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 228652271 - 2²² = 224457967 is a prime.

It is a super-2 number, since 2×228652271² = 104563722066914882, which contains 22 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 (228651271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767141 + ... + 767438.

It is an arithmetic number, because the mean of its divisors is an integer number (57546750).

Almost surely, 2^228652271 is an apocalyptic number.

228652271 is a deficient number, since it is larger than the sum of its proper divisors (1534729).

228652271 is a wasteful number, since it uses less digits than its factorization.

228652271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534728.

The product of its digits is 26880, while the sum is 35.

The square root of 228652271 is about 15121.2522960236. The cubic root of 228652271 is about 611.4934926245.

The spelling of 228652271 in words is "two hundred twenty-eight million, six hundred fifty-two thousand, two hundred seventy-one".