115345047 has 4 divisors (see below), whose sum is σ = 153793400. Its totient is φ = 76896696.

The previous prime is 115345033. The next prime is 115345057. The reversal of 115345047 is 740543511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 115345047 - 2⁴ = 115345031 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 (115345007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19224172 + ... + 19224177.

It is an arithmetic number, because the mean of its divisors is an integer number (38448350).

Almost surely, 2^115345047 is an apocalyptic number.

115345047 is a deficient number, since it is larger than the sum of its proper divisors (38448353).

115345047 is an equidigital number, since it uses as much as digits as its factorization.

115345047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38448352.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 115345047 is about 10739.8811445937. The cubic root of 115345047 is about 486.7802881536.

Adding to 115345047 its reverse (740543511), we get a palindrome (855888558).

The spelling of 115345047 in words is "one hundred fifteen million, three hundred forty-five thousand, forty-seven".