324194723161 has 9 divisors (see below), whose sum is σ = 344397064701. Its totient is φ = 305115335232.

The previous prime is 324194723159. The next prime is 324194723189. The reversal of 324194723161 is 161327491423.

The square root of 324194723161 is 569381.

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 246431823561 + 77762899600 = 496419^2 + 278860^2 .

It is not a de Polignac number, because 324194723161 - 2¹ = 324194723159 is a prime.

It is a super-3 number, since 3×324194723161³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324194723561) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9662731 + ... + 9696223.

Almost surely, 2^324194723161 is an apocalyptic number.

324194723161 is the 569381-st square number.

324194723161 is the 284691-st centered octagonal number.

It is an amenable number.

324194723161 is a deficient number, since it is larger than the sum of its proper divisors (20202341540).

324194723161 is an frugal number, since it uses more digits than its factorization.

324194723161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67020 (or 33510 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The spelling of 324194723161 in words is "three hundred twenty-four billion, one hundred ninety-four million, seven hundred twenty-three thousand, one hundred sixty-one".