115510313 has 4 divisors (see below), whose sum is σ = 116285700. Its totient is φ = 114734928.

The previous prime is 115510289. The next prime is 115510321. The reversal of 115510313 is 313015511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313015511 = 223 ⋅1403657.

It can be written as a sum of positive squares in 2 ways, for example, as 56957209 + 58553104 = 7547^2 + 7652^2 .

It is a cyclic number.

It is not a de Polignac number, because 115510313 - 2⁶ = 115510249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115510333) 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, 387470 + ... + 387767.

It is an arithmetic number, because the mean of its divisors is an integer number (29071425).

Almost surely, 2^115510313 is an apocalyptic number.

It is an amenable number.

115510313 is a deficient number, since it is larger than the sum of its proper divisors (775387).

115510313 is an equidigital number, since it uses as much as digits as its factorization.

115510313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775386.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 115510313 is about 10747.5724235755. The cubic root of 115510313 is about 487.0126629334.

Adding to 115510313 its reverse (313015511), we get a palindrome (428525824).

The spelling of 115510313 in words is "one hundred fifteen million, five hundred ten thousand, three hundred thirteen".