324540225 has 27 divisors (see below), whose sum is σ = 581772009. Its totient is φ = 172944000.

The previous prime is 324540199. The next prime is 324540233. The reversal of 324540225 is 522045423.

It is a happy number.

The square root of 324540225 is 18015.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 194853681 + 129686544 = 13959^2 + 11388^2 .

It is not a de Polignac number, because 324540225 - 2⁵ = 324540193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 269625 + ... + 270825.

Almost surely, 2^324540225 is an apocalyptic number.

324540225 is the 18015-th square number.

324540225 is the 9008-th centered octagonal number.

It is an amenable number.

324540225 is a deficient number, since it is larger than the sum of its proper divisors (257231784).

324540225 is an equidigital number, since it uses as much as digits as its factorization.

324540225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418 (or 1209 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The cubic root of 324540225 is about 687.2100639698.

Adding to 324540225 its reverse (522045423), we get a palindrome (846585648).

It can be divided in two parts, 324 and 540225, that multiplied together give a square (175032900 = 13230²).

The spelling of 324540225 in words is "three hundred twenty-four million, five hundred forty thousand, two hundred twenty-five".