512403013 has 4 divisors (see below), whose sum is σ = 513681228. Its totient is φ = 511124800.

The previous prime is 512403011. The next prime is 512403029. The reversal of 512403013 is 310304215.

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 492529249 + 19873764 = 22193^2 + 4458^2 .

It is a cyclic number.

It is not a de Polignac number, because 512403013 - 2¹ = 512403011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512403011) 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, 638506 + ... + 639307.

It is an arithmetic number, because the mean of its divisors is an integer number (128420307).

Almost surely, 2^512403013 is an apocalyptic number.

It is an amenable number.

512403013 is a deficient number, since it is larger than the sum of its proper divisors (1278215).

512403013 is a wasteful number, since it uses less digits than its factorization.

512403013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278214.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 512403013 is about 22636.3206595065. The cubic root of 512403013 is about 800.2098475544.

Adding to 512403013 its reverse (310304215), we get a palindrome (822707228).

The spelling of 512403013 in words is "five hundred twelve million, four hundred three thousand, thirteen".