1489143 has 4 divisors (see below), whose sum is σ = 1985528. Its totient is φ = 992760.

The previous prime is 1489129. The next prime is 1489153. The reversal of 1489143 is 3419841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1489143 - 2¹⁰ = 1488119 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1489143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489153) 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, 248188 + ... + 248193.

It is an arithmetic number, because the mean of its divisors is an integer number (496382).

2^1489143 is an apocalyptic number.

1489143 is a deficient number, since it is larger than the sum of its proper divisors (496385).

1489143 is an equidigital number, since it uses as much as digits as its factorization.

1489143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496384.

The product of its digits is 3456, while the sum is 30.

The square root of 1489143 is about 1220.3044702041. The cubic root of 1489143 is about 114.1945738397.

The spelling of 1489143 in words is "one million, four hundred eighty-nine thousand, one hundred forty-three".