115037385217 has 4 divisors (see below), whose sum is σ = 115039030356. Its totient is φ = 115035740080.

The previous prime is 115037385193. The next prime is 115037385251. The reversal of 115037385217 is 712583730511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24556143616 + 90481241601 = 156704^2 + 300801^2 .

It is a cyclic number.

It is not a de Polignac number, because 115037385217 - 2¹¹ = 115037383169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115037385317) 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, 712798 + ... + 859159.

It is an arithmetic number, because the mean of its divisors is an integer number (28759757589).

Almost surely, 2^115037385217 is an apocalyptic number.

It is an amenable number.

115037385217 is a deficient number, since it is larger than the sum of its proper divisors (1645139).

115037385217 is an equidigital number, since it uses as much as digits as its factorization.

115037385217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645138.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 115037385217 in words is "one hundred fifteen billion, thirty-seven million, three hundred eighty-five thousand, two hundred seventeen".