115504387 has 4 divisors (see below), whose sum is σ = 115697176. Its totient is φ = 115311600.

The previous prime is 115504373. The next prime is 115504397. The reversal of 115504387 is 783405511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 115504387 - 2¹¹ = 115502339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115504327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95493 + ... + 96694.

It is an arithmetic number, because the mean of its divisors is an integer number (28924294).

Almost surely, 2^115504387 is an apocalyptic number.

115504387 is a deficient number, since it is larger than the sum of its proper divisors (192789).

115504387 is an equidigital number, since it uses as much as digits as its factorization.

115504387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192788.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 115504387 is about 10747.2967298758. The cubic root of 115504387 is about 487.0043344233.

Adding to 115504387 its reverse (783405511), we get a palindrome (898909898).

The spelling of 115504387 in words is "one hundred fifteen million, five hundred four thousand, three hundred eighty-seven".