115816361 has 2 divisors, whose sum is σ = 115816362. Its totient is φ = 115816360.

The previous prime is 115816307. The next prime is 115816373. The reversal of 115816361 is 163618511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98883136 + 16933225 = 9944^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 115816361 - 2¹⁴ = 115799977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115816301) 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, 57908180 + 57908181.

It is an arithmetic number, because the mean of its divisors is an integer number (57908181).

Almost surely, 2^115816361 is an apocalyptic number.

It is an amenable number.

115816361 is a deficient number, since it is larger than the sum of its proper divisors (1).

115816361 is an equidigital number, since it uses as much as digits as its factorization.

115816361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 32.

The square root of 115816361 is about 10761.8010109832. The cubic root of 115816361 is about 487.4424017859.

The spelling of 115816361 in words is "one hundred fifteen million, eight hundred sixteen thousand, three hundred sixty-one".