305344229 has 2 divisors, whose sum is σ = 305344230. Its totient is φ = 305344228.

The previous prime is 305344199. The next prime is 305344241. The reversal of 305344229 is 922443503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296356225 + 8988004 = 17215^2 + 2998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-305344229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 305344195 and 305344204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305349229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152672114 + 152672115.

It is an arithmetic number, because the mean of its divisors is an integer number (152672115).

Almost surely, 2^305344229 is an apocalyptic number.

It is an amenable number.

305344229 is a deficient number, since it is larger than the sum of its proper divisors (1).

305344229 is an equidigital number, since it uses as much as digits as its factorization.

305344229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 305344229 is about 17474.1016650356. The cubic root of 305344229 is about 673.3846910200.

The spelling of 305344229 in words is "three hundred five million, three hundred forty-four thousand, two hundred twenty-nine".