228463225 has 9 divisors (see below), whose sum is σ = 283388143. Its totient is φ = 182710120.

The previous prime is 228463223. The next prime is 228463241. The reversal of 228463225 is 522364822.

The square root of 228463225 is 15115.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 82246761 + 146216464 = 9069^2 + 12092^2 .

It is not a de Polignac number, because 228463225 - 2¹ = 228463223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228463223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 74064 + ... + 77086.

Almost surely, 2^228463225 is an apocalyptic number.

228463225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228463225 is the 15115-th square number.

228463225 is the 7558-th centered octagonal number.

It is an amenable number.

228463225 is a deficient number, since it is larger than the sum of its proper divisors (54924918).

228463225 is an frugal number, since it uses more digits than its factorization.

228463225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056 (or 3028 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The cubic root of 228463225 is about 611.3249218485.

The spelling of 228463225 in words is "two hundred twenty-eight million, four hundred sixty-three thousand, two hundred twenty-five".