1045489 has 4 divisors (see below), whose sum is σ = 1047924. Its totient is φ = 1043056.

The previous prime is 1045487. The next prime is 1045493. The reversal of 1045489 is 9845401.

It is a happy number.

1045489 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9845401 = 19 ⋅518179.

It can be written as a sum of positive squares in 2 ways, for example, as 339889 + 705600 = 583^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045489 - 2¹ = 1045487 is a prime.

It is a Duffinian number.

1045489 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045489.

It is not an unprimeable number, because it can be changed into a prime (1045487) 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, 382 + ... + 1495.

It is an arithmetic number, because the mean of its divisors is an integer number (261981).

2^1045489 is an apocalyptic number.

It is an amenable number.

1045489 is a deficient number, since it is larger than the sum of its proper divisors (2435).

1045489 is an equidigital number, since it uses as much as digits as its factorization.

1045489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1045489 is about 1022.4915647574. The cubic root of 1045489 is about 101.4938723278.

The spelling of 1045489 in words is "one million, forty-five thousand, four hundred eighty-nine".