228333161 has 8 divisors (see below), whose sum is σ = 261043584. Its totient is φ = 195645600.

The previous prime is 228333151. The next prime is 228333221. The reversal of 228333161 is 161333822.

228333161 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 a cyclic number.

It is not a de Polignac number, because 228333161 - 2¹⁸ = 228071017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228333151) 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, 36461 + ... + 42261.

It is an arithmetic number, because the mean of its divisors is an integer number (32630448).

Almost surely, 2^228333161 is an apocalyptic number.

It is an amenable number.

228333161 is a deficient number, since it is larger than the sum of its proper divisors (32710423).

228333161 is an equidigital number, since it uses as much as digits as its factorization.

228333161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11431.

The product of its digits is 5184, while the sum is 29.

The square root of 228333161 is about 15110.6969064964. The cubic root of 228333161 is about 611.2088908359.

Adding to 228333161 its reverse (161333822), we get a palindrome (389666983).

The spelling of 228333161 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, one hundred sixty-one".