305073229 has 2 divisors, whose sum is σ = 305073230. Its totient is φ = 305073228.

The previous prime is 305073203. The next prime is 305073239. The reversal of 305073229 is 922370503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182196004 + 122877225 = 13498^2 + 11085^2 .

It is a cyclic number.

It is not a de Polignac number, because 305073229 - 2²³ = 296684621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 305073229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305073239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152536614 + 152536615.

It is an arithmetic number, because the mean of its divisors is an integer number (152536615).

Almost surely, 2^305073229 is an apocalyptic number.

It is an amenable number.

305073229 is a deficient number, since it is larger than the sum of its proper divisors (1).

305073229 is an equidigital number, since it uses as much as digits as its factorization.

305073229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 305073229 is about 17466.3456109170. The cubic root of 305073229 is about 673.1854172738.

The spelling of 305073229 in words is "three hundred five million, seventy-three thousand, two hundred twenty-nine".