512145 has 24 divisors (see below), whose sum is σ = 936000. Its totient is φ = 258336.

The previous prime is 512137. The next prime is 512147. The reversal of 512145 is 541215.

It is not a de Polignac number, because 512145 - 2³ = 512137 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 512145.

It is not an unprimeable number, because it can be changed into a prime (512147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 556 + ... + 1154.

It is an arithmetic number, because the mean of its divisors is an integer number (39000).

2⁵¹²¹⁴⁵ is an apocalyptic number.

It is an amenable number.

512145 is a deficient number, since it is larger than the sum of its proper divisors (423855).

512145 is a wasteful number, since it uses less digits than its factorization.

512145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 626 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 512145 is about 715.6430674575. The cubic root of 512145 is about 80.0075513705.

The spelling of 512145 in words is "five hundred twelve thousand, one hundred forty-five".