115831273 has 4 divisors (see below), whose sum is σ = 118656468. Its totient is φ = 113006080.

The previous prime is 115831271. The next prime is 115831279. The reversal of 115831273 is 372138511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 372138511 = 229 ⋅1625059.

It can be written as a sum of positive squares in 2 ways, for example, as 29192409 + 86638864 = 5403^2 + 9308^2 .

It is a cyclic number.

It is not a de Polignac number, because 115831273 - 2¹ = 115831271 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115831271) 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, 1412536 + ... + 1412617.

It is an arithmetic number, because the mean of its divisors is an integer number (29664117).

Almost surely, 2^115831273 is an apocalyptic number.

It is an amenable number.

115831273 is a deficient number, since it is larger than the sum of its proper divisors (2825195).

115831273 is an equidigital number, since it uses as much as digits as its factorization.

115831273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825194.

The product of its digits is 5040, while the sum is 31.

The square root of 115831273 is about 10762.4938095220. The cubic root of 115831273 is about 487.4633211939.

Adding to 115831273 its reverse (372138511), we get a palindrome (487969784).

The spelling of 115831273 in words is "one hundred fifteen million, eight hundred thirty-one thousand, two hundred seventy-three".