324545161 has 4 divisors (see below), whose sum is σ = 324732052. Its totient is φ = 324358272.

The previous prime is 324545149. The next prime is 324545171. The reversal of 324545161 is 161545423.

It is a happy number.

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 74304400 + 250240761 = 8620^2 + 15819^2 .

It is a cyclic number.

It is not a de Polignac number, because 324545161 - 2¹⁷ = 324414089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324545131) 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, 90816 + ... + 94321.

It is an arithmetic number, because the mean of its divisors is an integer number (81183013).

Almost surely, 2^324545161 is an apocalyptic number.

It is an amenable number.

324545161 is a deficient number, since it is larger than the sum of its proper divisors (186891).

324545161 is a wasteful number, since it uses less digits than its factorization.

324545161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186890.

The product of its digits is 14400, while the sum is 31.

The square root of 324545161 is about 18015.1369964261. The cubic root of 324545161 is about 687.2135479259.

The spelling of 324545161 in words is "three hundred twenty-four million, five hundred forty-five thousand, one hundred sixty-one".