115285771 has 2 divisors, whose sum is σ = 115285772. Its totient is φ = 115285770.

The previous prime is 115285741. The next prime is 115285799. The reversal of 115285771 is 177582511.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (177582511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115285771 - 2²¹ = 113188619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115285771.

It is not a weakly prime, because it can be changed into another prime (115285741) 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, 57642885 + 57642886.

It is an arithmetic number, because the mean of its divisors is an integer number (57642886).

Almost surely, 2^115285771 is an apocalyptic number.

115285771 is a deficient number, since it is larger than the sum of its proper divisors (1).

115285771 is an equidigital number, since it uses as much as digits as its factorization.

115285771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19600, while the sum is 37.

The square root of 115285771 is about 10737.1211691030. The cubic root of 115285771 is about 486.6968881485.

The spelling of 115285771 in words is "one hundred fifteen million, two hundred eighty-five thousand, seven hundred seventy-one".