512481 has 4 divisors (see below), whose sum is σ = 683312. Its totient is φ = 341652.

The previous prime is 512467. The next prime is 512497. The reversal of 512481 is 184215.

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 not a de Polignac number, because 512481 - 2⁷ = 512353 is a prime.

It is a super-2 number, since 2×512481² = 525273550722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (512581) 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, 85411 + ... + 85416.

It is an arithmetic number, because the mean of its divisors is an integer number (170828).

2⁵¹²⁴⁸¹ is an apocalyptic number.

It is an amenable number.

512481 is a deficient number, since it is larger than the sum of its proper divisors (170831).

512481 is a wasteful number, since it uses less digits than its factorization.

512481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170830.

The product of its digits is 320, while the sum is 21.

The square root of 512481 is about 715.8777828652. The cubic root of 512481 is about 80.0250442423.

Adding to 512481 its reverse (184215), we get a palindrome (696696).

The spelling of 512481 in words is "five hundred twelve thousand, four hundred eighty-one".