512226321 has 16 divisors (see below), whose sum is σ = 687148224. Its totient is φ = 339401664.

The previous prime is 512226287. The next prime is 512226347. The reversal of 512226321 is 123622215.

It is not a de Polignac number, because 512226321 - 2¹⁷ = 512095249 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 512226291 and 512226300.

It is not an unprimeable number, because it can be changed into a prime (512226521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642295 + ... + 643091.

It is an arithmetic number, because the mean of its divisors is an integer number (42946764).

Almost surely, 2^512226321 is an apocalyptic number.

It is an amenable number.

512226321 is a deficient number, since it is larger than the sum of its proper divisors (174921903).

512226321 is a wasteful number, since it uses less digits than its factorization.

512226321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840.

The product of its digits is 1440, while the sum is 24.

The square root of 512226321 is about 22632.4174802428. The cubic root of 512226321 is about 800.1178581568.

Adding to 512226321 its reverse (123622215), we get a palindrome (635848536).

The spelling of 512226321 in words is "five hundred twelve million, two hundred twenty-six thousand, three hundred twenty-one".