115389329 has 4 divisors (see below), whose sum is σ = 125879280. Its totient is φ = 104899380.

The previous prime is 115389317. The next prime is 115389331. The reversal of 115389329 is 923983511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115389329 - 2²⁰ = 114340753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115389389) 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, 5244959 + ... + 5244980.

It is an arithmetic number, because the mean of its divisors is an integer number (31469820).

Almost surely, 2^115389329 is an apocalyptic number.

It is an amenable number.

115389329 is a deficient number, since it is larger than the sum of its proper divisors (10489951).

115389329 is a wasteful number, since it uses less digits than its factorization.

115389329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10489950.

The product of its digits is 58320, while the sum is 41.

The square root of 115389329 is about 10741.9425152065. The cubic root of 115389329 is about 486.8425732926.

The spelling of 115389329 in words is "one hundred fifteen million, three hundred eighty-nine thousand, three hundred twenty-nine".