512445 has 16 divisors (see below), whose sum is σ = 829440. Its totient is φ = 270144.

The previous prime is 512443. The next prime is 512467. The reversal of 512445 is 544215.

It is not a de Polignac number, because 512445 - 2¹ = 512443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512443) 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 15 ways as a sum of consecutive naturals, for example, 1771 + ... + 2039.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2⁵¹²⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

512445 is a deficient number, since it is larger than the sum of its proper divisors (316995).

512445 is a wasteful number, since it uses less digits than its factorization.

512445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404.

The product of its digits is 800, while the sum is 21.

The square root of 512445 is about 715.8526384669. The cubic root of 512445 is about 80.0231703719.

The spelling of 512445 in words is "five hundred twelve thousand, four hundred forty-five".