115489 has 4 divisors (see below), whose sum is σ = 126000. Its totient is φ = 104980.

The previous prime is 115471. The next prime is 115499. The reversal of 115489 is 984511.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 984511 = 11 ⋅89501.

It is a cyclic number.

It is not a de Polignac number, because 115489 - 2⁷ = 115361 is a prime.

It is a Duffinian number.

115489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (115429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5239 + ... + 5260.

It is an arithmetic number, because the mean of its divisors is an integer number (31500).

2¹¹⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

115489 is a deficient number, since it is larger than the sum of its proper divisors (10511).

115489 is a wasteful number, since it uses less digits than its factorization.

115489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510.

The product of its digits is 1440, while the sum is 28.

The square root of 115489 is about 339.8367255021. The cubic root of 115489 is about 48.6982707919.

The spelling of 115489 in words is "one hundred fifteen thousand, four hundred eighty-nine".