115597289 has 2 divisors, whose sum is σ = 115597290. Its totient is φ = 115597288.

The previous prime is 115597283. The next prime is 115597319. The reversal of 115597289 is 982795511.

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., 108264025 + 7333264 = 10405^2 + 2708^2 .

It is a cyclic number.

It is not a de Polignac number, because 115597289 - 2²⁰ = 114548713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115597283) 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, 57798644 + 57798645.

It is an arithmetic number, because the mean of its divisors is an integer number (57798645).

Almost surely, 2^115597289 is an apocalyptic number.

It is an amenable number.

115597289 is a deficient number, since it is larger than the sum of its proper divisors (1).

115597289 is an equidigital number, since it uses as much as digits as its factorization.

115597289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 47.

The square root of 115597289 is about 10751.6179712637. The cubic root of 115597289 is about 487.1348678550.

The spelling of 115597289 in words is "one hundred fifteen million, five hundred ninety-seven thousand, two hundred eighty-nine".