115243559 has 2 divisors, whose sum is σ = 115243560. Its totient is φ = 115243558.

The previous prime is 115243537. The next prime is 115243613. The reversal of 115243559 is 955342511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115243559 - 2¹² = 115239463 is a 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 (115243159) 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, 57621779 + 57621780.

It is an arithmetic number, because the mean of its divisors is an integer number (57621780).

Almost surely, 2^115243559 is an apocalyptic number.

115243559 is a deficient number, since it is larger than the sum of its proper divisors (1).

115243559 is an equidigital number, since it uses as much as digits as its factorization.

115243559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 35.

The square root of 115243559 is about 10735.1552853231. The cubic root of 115243559 is about 486.6374793801.

The spelling of 115243559 in words is "one hundred fifteen million, two hundred forty-three thousand, five hundred fifty-nine".