512401 has 4 divisors (see below), whose sum is σ = 530100. Its totient is φ = 494704.

The previous prime is 512389. The next prime is 512419. The reversal of 512401 is 104215.

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 180625 + 331776 = 425^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 512401 - 2¹³ = 504209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512101) 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, 8806 + ... + 8863.

It is an arithmetic number, because the mean of its divisors is an integer number (132525).

2⁵¹²⁴⁰¹ is an apocalyptic number.

It is an amenable number.

512401 is a deficient number, since it is larger than the sum of its proper divisors (17699).

512401 is a wasteful number, since it uses less digits than its factorization.

512401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17698.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 512401 is about 715.8219052250. The cubic root of 512401 is about 80.0208799665.

Adding to 512401 its reverse (104215), we get a palindrome (616616).

The spelling of 512401 in words is "five hundred twelve thousand, four hundred one".