228345147 has 12 divisors (see below), whose sum is σ = 336055824. Its totient is φ = 149357520.

The previous prime is 228345133. The next prime is 228345149. The reversal of 228345147 is 741543822.

It is a happy number.

It is not a de Polignac number, because 228345147 - 2⁶ = 228345083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228345149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238879 + ... + 239832.

It is an arithmetic number, because the mean of its divisors is an integer number (28004652).

Almost surely, 2^228345147 is an apocalyptic number.

228345147 is a deficient number, since it is larger than the sum of its proper divisors (107710677).

228345147 is a wasteful number, since it uses less digits than its factorization.

228345147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478770 (or 478767 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 228345147 is about 15111.0935077512. The cubic root of 228345147 is about 611.2195854740.

Adding to 228345147 its reverse (741543822), we get a palindrome (969888969).

The spelling of 228345147 in words is "two hundred twenty-eight million, three hundred forty-five thousand, one hundred forty-seven".