512132223 has 4 divisors (see below), whose sum is σ = 682842968. Its totient is φ = 341421480.

The previous prime is 512132209. The next prime is 512132263. The reversal of 512132223 is 322231215.

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

It is not a de Polignac number, because 512132223 - 2¹⁰ = 512131199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 512132223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512132263) 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, 85355368 + ... + 85355373.

It is an arithmetic number, because the mean of its divisors is an integer number (170710742).

Almost surely, 2^512132223 is an apocalyptic number.

512132223 is a deficient number, since it is larger than the sum of its proper divisors (170710745).

512132223 is a wasteful number, since it uses less digits than its factorization.

512132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170710744.

The product of its digits is 720, while the sum is 21.

The square root of 512132223 is about 22630.3385524830. The cubic root of 512132223 is about 800.0688602185.

Adding to 512132223 its reverse (322231215), we get a palindrome (834363438).

The spelling of 512132223 in words is "five hundred twelve million, one hundred thirty-two thousand, two hundred twenty-three".