115305524245909 has 2 divisors, whose sum is σ = 115305524245910. Its totient is φ = 115305524245908.

The previous prime is 115305524245907. The next prime is 115305524245931. The reversal of 115305524245909 is 909542425503511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97816985721009 + 17488538524900 = 9890247^2 + 4181930^2 .

It is a cyclic number.

It is not a de Polignac number, because 115305524245909 - 2¹ = 115305524245907 is a prime.

Together with 115305524245907, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 115305524245909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115305524245907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57652762122954 + 57652762122955.

It is an arithmetic number, because the mean of its divisors is an integer number (57652762122955).

Almost surely, 2^{115305524245909} is an apocalyptic number.

It is an amenable number.

115305524245909 is a deficient number, since it is larger than the sum of its proper divisors (1).

115305524245909 is an equidigital number, since it uses as much as digits as its factorization.

115305524245909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720000, while the sum is 55.

The spelling of 115305524245909 in words is "one hundred fifteen trillion, three hundred five billion, five hundred twenty-four million, two hundred forty-five thousand, nine hundred nine".