115440505 has 4 divisors (see below), whose sum is σ = 138528612. Its totient is φ = 92352400.

The previous prime is 115440499. The next prime is 115440517. The reversal of 115440505 is 505044511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505044511 = 23 ⋅21958457.

It can be written as a sum of positive squares in 2 ways, for example, as 81054009 + 34386496 = 9003^2 + 5864^2 .

It is not a de Polignac number, because 115440505 - 2¹¹ = 115438457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115440505.

It is an unprimeable number.

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, 11544046 + ... + 11544055.

It is an arithmetic number, because the mean of its divisors is an integer number (34632153).

Almost surely, 2^115440505 is an apocalyptic number.

It is an amenable number.

115440505 is a deficient number, since it is larger than the sum of its proper divisors (23088107).

115440505 is an equidigital number, since it uses as much as digits as its factorization.

115440505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23088106.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 115440505 is about 10744.3243156562. The cubic root of 115440505 is about 486.9145353864.

The spelling of 115440505 in words is "one hundred fifteen million, four hundred forty thousand, five hundred five".