324190561 has 4 divisors (see below), whose sum is σ = 343260612. Its totient is φ = 305120512.

The previous prime is 324190513. The next prime is 324190579. The reversal of 324190561 is 165091423.

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 236206161 + 87984400 = 15369^2 + 9380^2 .

It is a cyclic number.

It is not a de Polignac number, because 324190561 - 2⁹ = 324190049 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324190861) 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, 9535000 + ... + 9535033.

It is an arithmetic number, because the mean of its divisors is an integer number (85815153).

Almost surely, 2^324190561 is an apocalyptic number.

It is an amenable number.

324190561 is a deficient number, since it is larger than the sum of its proper divisors (19070051).

324190561 is a wasteful number, since it uses less digits than its factorization.

324190561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19070050.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 324190561 is about 18005.2925830157. The cubic root of 324190561 is about 686.9631721608.

The spelling of 324190561 in words is "three hundred twenty-four million, one hundred ninety thousand, five hundred sixty-one".