115775773 has 2 divisors, whose sum is σ = 115775774. Its totient is φ = 115775772.

The previous prime is 115775761. The next prime is 115775789. The reversal of 115775773 is 377577511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115734564 + 41209 = 10758^2 + 203^2 .

It is an emirp because it is prime and its reverse (377577511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115775773 is a prime.

It is a super-2 number, since 2×115775773² = 26808059227495058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115775753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57887886 + 57887887.

It is an arithmetic number, because the mean of its divisors is an integer number (57887887).

Almost surely, 2^115775773 is an apocalyptic number.

It is an amenable number.

115775773 is a deficient number, since it is larger than the sum of its proper divisors (1).

115775773 is an equidigital number, since it uses as much as digits as its factorization.

115775773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180075, while the sum is 43.

The square root of 115775773 is about 10759.9151018956. The cubic root of 115775773 is about 487.3854535170.

The spelling of 115775773 in words is "one hundred fifteen million, seven hundred seventy-five thousand, seven hundred seventy-three".