324135445 has 4 divisors (see below), whose sum is σ = 388962540. Its totient is φ = 259308352.

The previous prime is 324135437. The next prime is 324135451. The reversal of 324135445 is 544531423.

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

It can be written as a sum of positive squares in 2 ways, for example, as 181117764 + 143017681 = 13458^2 + 11959^2 .

It is a cyclic number.

It is not a de Polignac number, because 324135445 - 2³ = 324135437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32413540 + ... + 32413549.

It is an arithmetic number, because the mean of its divisors is an integer number (97240635).

Almost surely, 2^324135445 is an apocalyptic number.

It is an amenable number.

324135445 is a deficient number, since it is larger than the sum of its proper divisors (64827095).

324135445 is an equidigital number, since it uses as much as digits as its factorization.

324135445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64827094.

The product of its digits is 28800, while the sum is 31.

The square root of 324135445 is about 18003.7619679888. The cubic root of 324135445 is about 686.9242394953.

Adding to 324135445 its reverse (544531423), we get a palindrome (868666868).

The spelling of 324135445 in words is "three hundred twenty-four million, one hundred thirty-five thousand, four hundred forty-five".