115763281 has 2 divisors, whose sum is σ = 115763282. Its totient is φ = 115763280.

The previous prime is 115763261. The next prime is 115763317. The reversal of 115763281 is 182367511.

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., 63345681 + 52417600 = 7959^2 + 7240^2 .

It is a cyclic number.

It is not a de Polignac number, because 115763281 - 2¹³ = 115755089 is a prime.

It is a super-2 number, since 2×115763281² = 26802274455769922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115763261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57881640 + 57881641.

It is an arithmetic number, because the mean of its divisors is an integer number (57881641).

Almost surely, 2^115763281 is an apocalyptic number.

It is an amenable number.

115763281 is a deficient number, since it is larger than the sum of its proper divisors (1).

115763281 is an equidigital number, since it uses as much as digits as its factorization.

115763281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 115763281 is about 10759.3345983848. The cubic root of 115763281 is about 487.3679235453.

The spelling of 115763281 in words is "one hundred fifteen million, seven hundred sixty-three thousand, two hundred eighty-one".