228144633 has 4 divisors (see below), whose sum is σ = 304192848. Its totient is φ = 152096420.

The previous prime is 228144617. The next prime is 228144667. The reversal of 228144633 is 336441822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228144633 - 2⁴ = 228144617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228144594 and 228144603.

It is not an unprimeable number, because it can be changed into a prime (228244633) 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, 38024103 + ... + 38024108.

It is an arithmetic number, because the mean of its divisors is an integer number (76048212).

Almost surely, 2^228144633 is an apocalyptic number.

It is an amenable number.

228144633 is a deficient number, since it is larger than the sum of its proper divisors (76048215).

228144633 is an equidigital number, since it uses as much as digits as its factorization.

228144633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76048214.

The product of its digits is 27648, while the sum is 33.

The square root of 228144633 is about 15104.4573884665. The cubic root of 228144633 is about 611.0406254266.

The spelling of 228144633 in words is "two hundred twenty-eight million, one hundred forty-four thousand, six hundred thirty-three".