228052729 has 2 divisors, whose sum is σ = 228052730. Its totient is φ = 228052728.

The previous prime is 228052691. The next prime is 228052777. The reversal of 228052729 is 927250822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141134400 + 86918329 = 11880^2 + 9323^2 .

It is a cyclic number.

It is not a de Polignac number, because 228052729 - 2¹⁷ = 227921657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228052829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114026364 + 114026365.

It is an arithmetic number, because the mean of its divisors is an integer number (114026365).

Almost surely, 2^228052729 is an apocalyptic number.

It is an amenable number.

228052729 is a deficient number, since it is larger than the sum of its proper divisors (1).

228052729 is an equidigital number, since it uses as much as digits as its factorization.

228052729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 228052729 is about 15101.4148012694. The cubic root of 228052729 is about 610.9585654643.

The spelling of 228052729 in words is "two hundred twenty-eight million, fifty-two thousand, seven hundred twenty-nine".