115306249 has 2 divisors, whose sum is σ = 115306250. Its totient is φ = 115306248.

The previous prime is 115306151. The next prime is 115306253. The reversal of 115306249 is 942603511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109056249 + 6250000 = 10443^2 + 2500^2 .

It is an emirp because it is prime and its reverse (942603511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115306249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115306249.

It is not a weakly prime, because it can be changed into another prime (115306259) 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, 57653124 + 57653125.

It is an arithmetic number, because the mean of its divisors is an integer number (57653125).

Almost surely, 2^115306249 is an apocalyptic number.

It is an amenable number.

115306249 is a deficient number, since it is larger than the sum of its proper divisors (1).

115306249 is an equidigital number, since it uses as much as digits as its factorization.

115306249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 115306249 is about 10738.0747343274. The cubic root of 115306249 is about 486.7257034675.

The spelling of 115306249 in words is "one hundred fifteen million, three hundred six thousand, two hundred forty-nine".