115205773 has 2 divisors, whose sum is σ = 115205774. Its totient is φ = 115205772.

The previous prime is 115205771. The next prime is 115205801. The reversal of 115205773 is 377502511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94439524 + 20766249 = 9718^2 + 4557^2 .

It is an emirp because it is prime and its reverse (377502511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115205773 - 2¹ = 115205771 is a prime.

Together with 115205771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115205771) 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, 57602886 + 57602887.

It is an arithmetic number, because the mean of its divisors is an integer number (57602887).

Almost surely, 2^115205773 is an apocalyptic number.

It is an amenable number.

115205773 is a deficient number, since it is larger than the sum of its proper divisors (1).

115205773 is an equidigital number, since it uses as much as digits as its factorization.

115205773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 115205773 is about 10733.3952223889. The cubic root of 115205773 is about 486.5842874157.

The spelling of 115205773 in words is "one hundred fifteen million, two hundred five thousand, seven hundred seventy-three".