324997513 has 4 divisors (see below), whose sum is σ = 325345300. Its totient is φ = 324649728.

The previous prime is 324997501. The next prime is 324997523. The reversal of 324997513 is 315799423.

324997513 = 12747² + 12748².

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 162511504 + 162486009 = 12748^2 + 12747^2 .

It is a cyclic number.

It is not a de Polignac number, because 324997513 - 2⁵ = 324997481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 324997513.

It is not an unprimeable number, because it can be changed into a prime (324997523) 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, 172488 + ... + 174361.

It is an arithmetic number, because the mean of its divisors is an integer number (81336325).

Almost surely, 2^324997513 is an apocalyptic number.

324997513 is the 12748-th centered square number.

It is an amenable number.

324997513 is a deficient number, since it is larger than the sum of its proper divisors (347787).

324997513 is an equidigital number, since it uses as much as digits as its factorization.

324997513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347786.

The product of its digits is 204120, while the sum is 43.

The square root of 324997513 is about 18027.6874002186. The cubic root of 324997513 is about 687.5326797909.

The spelling of 324997513 in words is "three hundred twenty-four million, nine hundred ninety-seven thousand, five hundred thirteen".