481209 has 4 divisors (see below), whose sum is σ = 641616. Its totient is φ = 320804.

The previous prime is 481207. The next prime is 481211. The reversal of 481209 is 902184.

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 (481207) and next prime (481211).

It is a cyclic number.

It is not a de Polignac number, because 481209 - 2¹ = 481207 is a prime.

It is a D-number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 481209.

It is not an unprimeable number, because it can be changed into a prime (481207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80199 + ... + 80204.

It is an arithmetic number, because the mean of its divisors is an integer number (160404).

2⁴⁸¹²⁰⁹ is an apocalyptic number.

It is an amenable number.

481209 is a deficient number, since it is larger than the sum of its proper divisors (160407).

481209 is a wasteful number, since it uses less digits than its factorization.

481209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160406.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 481209 is about 693.6922948974. The cubic root of 481209 is about 78.3630348611.

The spelling of 481209 in words is "four hundred eighty-one thousand, two hundred nine".