115047247 has 6 divisors (see below), whose sum is σ = 133830528. Its totient is φ = 98611884.

The previous prime is 115047239. The next prime is 115047253. The reversal of 115047247 is 742740511.

It is not a de Polignac number, because 115047247 - 2³ = 115047239 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 (115047217) 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 in 5 ways as a sum of consecutive naturals, for example, 1173903 + ... + 1174000.

It is an arithmetic number, because the mean of its divisors is an integer number (22305088).

Almost surely, 2^115047247 is an apocalyptic number.

115047247 is a deficient number, since it is larger than the sum of its proper divisors (18783281).

115047247 is an equidigital number, since it uses as much as digits as its factorization.

115047247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347917 (or 2347910 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 115047247 is about 10726.0079712818. The cubic root of 115047247 is about 486.3610009539.

Adding to 115047247 its reverse (742740511), we get a palindrome (857787758).

The spelling of 115047247 in words is "one hundred fifteen million, forty-seven thousand, two hundred forty-seven".