1115489 has 4 divisors (see below), whose sum is σ = 1181124. Its totient is φ = 1049856.

The previous prime is 1115467. The next prime is 1115497. The reversal of 1115489 is 9845111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9845111 = 2663 ⋅3697.

It can be written as a sum of positive squares in 2 ways, for example, as 1030225 + 85264 = 1015^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115489 - 2¹² = 1111393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1115419) 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, 32792 + ... + 32825.

It is an arithmetic number, because the mean of its divisors is an integer number (295281).

2^1115489 is an apocalyptic number.

It is an amenable number.

1115489 is a deficient number, since it is larger than the sum of its proper divisors (65635).

1115489 is an equidigital number, since it uses as much as digits as its factorization.

1115489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65634.

The product of its digits is 1440, while the sum is 29.

The square root of 1115489 is about 1056.1671269264. The cubic root of 1115489 is about 103.7102697830.

The spelling of 1115489 in words is "one million, one hundred fifteen thousand, four hundred eighty-nine".