228526249 has 6 divisors (see below), whose sum is σ = 265836714. Its totient is φ = 195879600.

The previous prime is 228526237. The next prime is 228526261. The reversal of 228526249 is 942625822.

228526249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228526237) and next prime (228526261).

It can be written as a sum of positive squares in only one way, i.e., 211179024 + 17347225 = 14532^2 + 4165^2 .

It is not a de Polignac number, because 228526249 - 2¹⁷ = 228395177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228526289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2331852 + ... + 2331949.

It is an arithmetic number, because the mean of its divisors is an integer number (44306119).

Almost surely, 2^228526249 is an apocalyptic number.

It is an amenable number.

228526249 is a deficient number, since it is larger than the sum of its proper divisors (37310465).

228526249 is an equidigital number, since it uses as much as digits as its factorization.

228526249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663815 (or 4663808 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 228526249 is about 15117.0846726477. The cubic root of 228526249 is about 611.3811301647.

The spelling of 228526249 in words is "two hundred twenty-eight million, five hundred twenty-six thousand, two hundred forty-nine".