115238447 has 4 divisors (see below), whose sum is σ = 115676880. Its totient is φ = 114800016.

The previous prime is 115238429. The next prime is 115238479. The reversal of 115238447 is 744832511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744832511 = 283 ⋅2631917.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115238447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115238147) 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 in 3 ways as a sum of consecutive naturals, for example, 218822 + ... + 219347.

It is an arithmetic number, because the mean of its divisors is an integer number (28919220).

Almost surely, 2^115238447 is an apocalyptic number.

115238447 is a deficient number, since it is larger than the sum of its proper divisors (438433).

115238447 is an equidigital number, since it uses as much as digits as its factorization.

115238447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438432.

The product of its digits is 26880, while the sum is 35.

The square root of 115238447 is about 10734.9171864528. The cubic root of 115238447 is about 486.6302838150.

The spelling of 115238447 in words is "one hundred fifteen million, two hundred thirty-eight thousand, four hundred forty-seven".