115440115 has 16 divisors (see below), whose sum is σ = 167631552. Its totient is φ = 74502144.

The previous prime is 115440113. The next prime is 115440119. The reversal of 115440115 is 511044511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115440115 - 2¹ = 115440113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115440113) 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 15 ways as a sum of consecutive naturals, for example, 96414 + ... + 97603.

It is an arithmetic number, because the mean of its divisors is an integer number (10476972).

Almost surely, 2^115440115 is an apocalyptic number.

115440115 is a deficient number, since it is larger than the sum of its proper divisors (52191437).

115440115 is a wasteful number, since it uses less digits than its factorization.

115440115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194046.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 115440115 is about 10744.3061665237. The cubic root of 115440115 is about 486.9139870610.

Adding to 115440115 its reverse (511044511), we get a palindrome (626484626).

The spelling of 115440115 in words is "one hundred fifteen million, four hundred forty thousand, one hundred fifteen".