512432213 has 2 divisors, whose sum is σ = 512432214. Its totient is φ = 512432212.

The previous prime is 512432209. The next prime is 512432251. The reversal of 512432213 is 312234215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511754884 + 677329 = 22622^2 + 823^2 .

It is a cyclic number.

It is not a de Polignac number, because 512432213 - 2² = 512432209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512432293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256216106 + 256216107.

It is an arithmetic number, because the mean of its divisors is an integer number (256216107).

Almost surely, 2^512432213 is an apocalyptic number.

It is an amenable number.

512432213 is a deficient number, since it is larger than the sum of its proper divisors (1).

512432213 is an equidigital number, since it uses as much as digits as its factorization.

512432213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 512432213 is about 22636.9656314622. The cubic root of 512432213 is about 800.2250476235.

Adding to 512432213 its reverse (312234215), we get a palindrome (824666428).

The spelling of 512432213 in words is "five hundred twelve million, four hundred thirty-two thousand, two hundred thirteen".