481716121 has 4 divisors (see below), whose sum is σ = 481766500. Its totient is φ = 481665744.

The previous prime is 481716119. The next prime is 481716133. The reversal of 481716121 is 121617184.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 262083721 + 219632400 = 16189^2 + 14820^2 .

It is a cyclic number.

It is not a de Polignac number, because 481716121 - 2¹ = 481716119 is a prime.

It is a super-3 number, since 3×481716121³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481716821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5946 + ... + 31603.

It is an arithmetic number, because the mean of its divisors is an integer number (120441625).

Almost surely, 2^481716121 is an apocalyptic number.

It is an amenable number.

481716121 is a deficient number, since it is larger than the sum of its proper divisors (50379).

481716121 is a wasteful number, since it uses less digits than its factorization.

481716121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50378.

The product of its digits is 2688, while the sum is 31.

The square root of 481716121 is about 21948.0322808219. The cubic root of 481716121 is about 783.9055276497.

The spelling of 481716121 in words is "four hundred eighty-one million, seven hundred sixteen thousand, one hundred twenty-one".