304425134621 has 2 divisors, whose sum is σ = 304425134622. Its totient is φ = 304425134620.

The previous prime is 304425134551. The next prime is 304425134653. The reversal of 304425134621 is 126431524403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256047132121 + 48378002500 = 506011^2 + 219950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304425134621 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304425134921) 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, 152212567310 + 152212567311.

It is an arithmetic number, because the mean of its divisors is an integer number (152212567311).

Almost surely, 2^304425134621 is an apocalyptic number.

It is an amenable number.

304425134621 is a deficient number, since it is larger than the sum of its proper divisors (1).

304425134621 is an equidigital number, since it uses as much as digits as its factorization.

304425134621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 304425134621 in words is "three hundred four billion, four hundred twenty-five million, one hundred thirty-four thousand, six hundred twenty-one".