228132223 has 8 divisors (see below), whose sum is σ = 251870976. Its totient is φ = 204893400.

The previous prime is 228132217. The next prime is 228132271. The reversal of 228132223 is 322231822.

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 a de Polignac number, because none of the positive numbers 2^k-228132223 is a prime.

It is a super-2 number, since 2×228132223² = 104088622341843458, 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 (228132283) 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, 124023 + ... + 125848.

It is an arithmetic number, because the mean of its divisors is an integer number (31483872).

Almost surely, 2^228132223 is an apocalyptic number.

228132223 is a deficient number, since it is larger than the sum of its proper divisors (23738753).

228132223 is a wasteful number, since it uses less digits than its factorization.

228132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249965.

The product of its digits is 2304, while the sum is 25.

The square root of 228132223 is about 15104.0465769939. The cubic root of 228132223 is about 611.0295459759.

The spelling of 228132223 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, two hundred twenty-three".