228143135 has 8 divisors (see below), whose sum is σ = 298660176. Its totient is φ = 165922240.

The previous prime is 228143129. The next prime is 228143189. The reversal of 228143135 is 531341822.

It is a happy number.

228143135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 228143135 - 2¹² = 228139039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228143098 and 228143107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2073974 + ... + 2074083.

It is an arithmetic number, because the mean of its divisors is an integer number (37332522).

Almost surely, 2^228143135 is an apocalyptic number.

228143135 is a deficient number, since it is larger than the sum of its proper divisors (70517041).

228143135 is a wasteful number, since it uses less digits than its factorization.

228143135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148073.

The product of its digits is 5760, while the sum is 29.

The square root of 228143135 is about 15104.4078003740. The cubic root of 228143135 is about 611.0392880574.

Adding to 228143135 its reverse (531341822), we get a palindrome (759484957).

The spelling of 228143135 in words is "two hundred twenty-eight million, one hundred forty-three thousand, one hundred thirty-five".