306000421729 has 2 divisors, whose sum is σ = 306000421730. Its totient is φ = 306000421728.

The previous prime is 306000421667. The next prime is 306000421747. The reversal of 306000421729 is 927124000603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171147690000 + 134852731729 = 413700^2 + 367223^2 .

It is a cyclic number.

It is not a de Polignac number, because 306000421729 - 2⁹ = 306000421217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 306000421694 and 306000421703.

It is not a weakly prime, because it can be changed into another prime (306000421789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153000210864 + 153000210865.

It is an arithmetic number, because the mean of its divisors is an integer number (153000210865).

Almost surely, 2^306000421729 is an apocalyptic number.

It is an amenable number.

306000421729 is a deficient number, since it is larger than the sum of its proper divisors (1).

306000421729 is an equidigital number, since it uses as much as digits as its factorization.

306000421729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 306000421729 in words is "three hundred six billion, four hundred twenty-one thousand, seven hundred twenty-nine".