8125030340309 has 2 divisors, whose sum is σ = 8125030340310. Its totient is φ = 8125030340308.

The previous prime is 8125030340279. The next prime is 8125030340327. The reversal of 8125030340309 is 9030430305218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7753635166225 + 371395174084 = 2784535^2 + 609422^2 .

It is a cyclic number.

It is not a de Polignac number, because 8125030340309 - 2²⁰ = 8125029291733 is a prime.

It is a super-2 number, since 2×8125030340309² (a number of 27 digits) contains 22 as substring.

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 (8125030340209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062515170154 + 4062515170155.

It is an arithmetic number, because the mean of its divisors is an integer number (4062515170155).

Almost surely, 2^{8125030340309} is an apocalyptic number.

It is an amenable number.

8125030340309 is a deficient number, since it is larger than the sum of its proper divisors (1).

8125030340309 is an equidigital number, since it uses as much as digits as its factorization.

8125030340309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 8125030340309 in words is "eight trillion, one hundred twenty-five billion, thirty million, three hundred forty thousand, three hundred nine".