512213133 has 4 divisors (see below), whose sum is σ = 682950848. Its totient is φ = 341475420.

The previous prime is 512213113. The next prime is 512213137. The reversal of 512213133 is 331312215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 512213133 - 2⁵ = 512213101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512213137) 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, 85368853 + ... + 85368858.

It is an arithmetic number, because the mean of its divisors is an integer number (170737712).

Almost surely, 2^512213133 is an apocalyptic number.

It is an amenable number.

512213133 is a deficient number, since it is larger than the sum of its proper divisors (170737715).

512213133 is a wasteful number, since it uses less digits than its factorization.

512213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170737714.

The product of its digits is 540, while the sum is 21.

The square root of 512213133 is about 22632.1261263718. The cubic root of 512213133 is about 800.1109913713.

Adding to 512213133 its reverse (331312215), we get a palindrome (843525348).

The spelling of 512213133 in words is "five hundred twelve million, two hundred thirteen thousand, one hundred thirty-three".