228528611 has 2 divisors, whose sum is σ = 228528612. Its totient is φ = 228528610.

The previous prime is 228528577. The next prime is 228528659. The reversal of 228528611 is 116825822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228528611 - 2¹⁰ = 228527587 is a prime.

It is not a weakly prime, because it can be changed into another prime (228528661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114264305 + 114264306.

It is an arithmetic number, because the mean of its divisors is an integer number (114264306).

Almost surely, 2^228528611 is an apocalyptic number.

228528611 is a deficient number, since it is larger than the sum of its proper divisors (1).

228528611 is an equidigital number, since it uses as much as digits as its factorization.

228528611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 35.

The square root of 228528611 is about 15117.1627959746. The cubic root of 228528611 is about 611.3832365271.

The spelling of 228528611 in words is "two hundred twenty-eight million, five hundred twenty-eight thousand, six hundred eleven".