228144325 has 6 divisors (see below), whose sum is σ = 282898994. Its totient is φ = 182515440.

The previous prime is 228144311. The next prime is 228144359. The reversal of 228144325 is 523441822.

228144325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 40947201 + 187197124 = 6399^2 + 13682^2 .

It is not a de Polignac number, because 228144325 - 2¹³ = 228136133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4562862 + ... + 4562911.

Almost surely, 2^228144325 is an apocalyptic number.

228144325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228144325 is a deficient number, since it is larger than the sum of its proper divisors (54754669).

228144325 is an equidigital number, since it uses as much as digits as its factorization.

228144325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125783 (or 9125778 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 228144325 is about 15104.4471927972. The cubic root of 228144325 is about 611.0403504540.

The spelling of 228144325 in words is "two hundred twenty-eight million, one hundred forty-four thousand, three hundred twenty-five".