305244029 has 2 divisors, whose sum is σ = 305244030. Its totient is φ = 305244028.

The previous prime is 305243999. The next prime is 305244031. The reversal of 305244029 is 920442503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259951129 + 45292900 = 16123^2 + 6730^2 .

It is an emirp because it is prime and its reverse (920442503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 305244029 - 2⁸ = 305243773 is a prime.

It is a Sophie Germain prime.

Together with 305244031, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 305243992 and 305244010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305244629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152622014 + 152622015.

It is an arithmetic number, because the mean of its divisors is an integer number (152622015).

Almost surely, 2^305244029 is an apocalyptic number.

It is an amenable number.

305244029 is a deficient number, since it is larger than the sum of its proper divisors (1).

305244029 is an equidigital number, since it uses as much as digits as its factorization.

305244029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 305244029 is about 17471.2343296059. The cubic root of 305244029 is about 673.3110249501.

The spelling of 305244029 in words is "three hundred five million, two hundred forty-four thousand, twenty-nine".