1125489 has 4 divisors (see below), whose sum is σ = 1500656. Its totient is φ = 750324.

The previous prime is 1125479. The next prime is 1125499. The reversal of 1125489 is 9845211.

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.

It is an interprime number because it is at equal distance from previous prime (1125479) and next prime (1125499).

It is not a de Polignac number, because 1125489 - 2⁴ = 1125473 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1125419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187579 + ... + 187584.

It is an arithmetic number, because the mean of its divisors is an integer number (375164).

2^1125489 is an apocalyptic number.

It is an amenable number.

1125489 is a deficient number, since it is larger than the sum of its proper divisors (375167).

1125489 is an equidigital number, since it uses as much as digits as its factorization.

1125489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375166.

The product of its digits is 2880, while the sum is 30.

The square root of 1125489 is about 1060.8906635464. The cubic root of 1125489 is about 104.0192580215.

The spelling of 1125489 in words is "one million, one hundred twenty-five thousand, four hundred eighty-nine".