115305243 has 16 divisors (see below), whose sum is σ = 165782400. Its totient is φ = 71046720.

The previous prime is 115305227. The next prime is 115305251. The reversal of 115305243 is 342503511.

It is not a de Polignac number, because 115305243 - 2⁴ = 115305227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115305143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22333 + ... + 27006.

It is an arithmetic number, because the mean of its divisors is an integer number (10361400).

Almost surely, 2^115305243 is an apocalyptic number.

115305243 is a deficient number, since it is larger than the sum of its proper divisors (50477157).

115305243 is a wasteful number, since it uses less digits than its factorization.

115305243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49402.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 115305243 is about 10738.0278915637. The cubic root of 115305243 is about 486.7242879690.

Adding to 115305243 its reverse (342503511), we get a palindrome (457808754).

The spelling of 115305243 in words is "one hundred fifteen million, three hundred five thousand, two hundred forty-three".