115281247 has 2 divisors, whose sum is σ = 115281248. Its totient is φ = 115281246.

The previous prime is 115281241. The next prime is 115281289. The reversal of 115281247 is 742182511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115281247 - 2³ = 115281239 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 (115281241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57640623 + 57640624.

It is an arithmetic number, because the mean of its divisors is an integer number (57640624).

Almost surely, 2^115281247 is an apocalyptic number.

115281247 is a deficient number, since it is larger than the sum of its proper divisors (1).

115281247 is an equidigital number, since it uses as much as digits as its factorization.

115281247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 31.

The square root of 115281247 is about 10736.9104960412. The cubic root of 115281247 is about 486.6905218077.

The spelling of 115281247 in words is "one hundred fifteen million, two hundred eighty-one thousand, two hundred forty-seven".