115601663 has 2 divisors, whose sum is σ = 115601664. Its totient is φ = 115601662.

The previous prime is 115601641. The next prime is 115601669. The reversal of 115601663 is 366106511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115601663 - 2⁸ = 115601407 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115601669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57800831 + 57800832.

It is an arithmetic number, because the mean of its divisors is an integer number (57800832).

Almost surely, 2^115601663 is an apocalyptic number.

115601663 is a deficient number, since it is larger than the sum of its proper divisors (1).

115601663 is an equidigital number, since it uses as much as digits as its factorization.

115601663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 115601663 is about 10751.8213805848. The cubic root of 115601663 is about 487.1410118891.

The spelling of 115601663 in words is "one hundred fifteen million, six hundred one thousand, six hundred sixty-three".