2309125439 has 2 divisors, whose sum is σ = 2309125440. Its totient is φ = 2309125438.

The previous prime is 2309125397. The next prime is 2309125447. The reversal of 2309125439 is 9345219032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2309125439 - 2⁸ = 2309125183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2309125459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154562719 + 1154562720.

It is an arithmetic number, because the mean of its divisors is an integer number (1154562720).

Almost surely, 2^2309125439 is an apocalyptic number.

2309125439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309125439 is an equidigital number, since it uses as much as digits as its factorization.

2309125439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 2309125439 is about 48053.3603299499. The cubic root of 2309125439 is about 1321.7495623297.

The spelling of 2309125439 in words is "two billion, three hundred nine million, one hundred twenty-five thousand, four hundred thirty-nine".