512445423 has 8 divisors (see below), whose sum is σ = 780869248. Its totient is φ = 292825944.

The previous prime is 512445343. The next prime is 512445443. The reversal of 512445423 is 324544215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 512445423 - 2²⁶ = 445336559 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 (512445443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12201061 + ... + 12201102.

It is an arithmetic number, because the mean of its divisors is an integer number (97608656).

Almost surely, 2^512445423 is an apocalyptic number.

512445423 is a deficient number, since it is larger than the sum of its proper divisors (268423825).

512445423 is a wasteful number, since it uses less digits than its factorization.

512445423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24402173.

The product of its digits is 19200, while the sum is 30.

The square root of 512445423 is about 22637.2574089707. The cubic root of 512445423 is about 800.2319239035.

Adding to 512445423 its reverse (324544215), we get a palindrome (836989638).

The spelling of 512445423 in words is "five hundred twelve million, four hundred forty-five thousand, four hundred twenty-three".