489121 has 4 divisors (see below), whose sum is σ = 490644. Its totient is φ = 487600.

The previous prime is 489113. The next prime is 489127. The reversal of 489121 is 121984.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 239121 + 250000 = 489^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 489121 - 2³ = 489113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70 + ... + 991.

It is an arithmetic number, because the mean of its divisors is an integer number (122661).

2⁴⁸⁹¹²¹ is an apocalyptic number.

It is an amenable number.

489121 is a deficient number, since it is larger than the sum of its proper divisors (1523).

489121 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 489121 = (141829)₁₃.

489121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522.

The product of its digits is 576, while the sum is 25.

The square root of 489121 is about 699.3718610296. The cubic root of 489121 is about 78.7901818958.

The spelling of 489121 in words is "four hundred eighty-nine thousand, one hundred twenty-one".