512103 has 4 divisors (see below), whose sum is σ = 682808. Its totient is φ = 341400.

The previous prime is 512101. The next prime is 512137. The reversal of 512103 is 301215.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 512103 - 2¹ = 512101 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512101) 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, 85348 + ... + 85353.

It is an arithmetic number, because the mean of its divisors is an integer number (170702).

2⁵¹²¹⁰³ is an apocalyptic number.

512103 is a deficient number, since it is larger than the sum of its proper divisors (170705).

512103 is a wasteful number, since it uses less digits than its factorization.

512103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170704.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 512103 is about 715.6137226186. The cubic root of 512103 is about 80.0053642236.

Adding to 512103 its reverse (301215), we get a palindrome (813318).

The spelling of 512103 in words is "five hundred twelve thousand, one hundred three".