326244161 has 4 divisors (see below), whose sum is σ = 345435012. Its totient is φ = 307053312.

The previous prime is 326244143. The next prime is 326244179. The reversal of 326244161 is 161442623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161442623 = 29 ⋅5566987.

It is an interprime number because it is at equal distance from previous prime (326244143) and next prime (326244179).

It can be written as a sum of positive squares in 2 ways, for example, as 223323136 + 102921025 = 14944^2 + 10145^2 .

It is a cyclic number.

It is not a de Polignac number, because 326244161 - 2¹⁸ = 325982017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (326244181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9595400 + ... + 9595433.

It is an arithmetic number, because the mean of its divisors is an integer number (86358753).

Almost surely, 2^326244161 is an apocalyptic number.

It is an amenable number.

326244161 is a deficient number, since it is larger than the sum of its proper divisors (19190851).

326244161 is a wasteful number, since it uses less digits than its factorization.

326244161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19190850.

The product of its digits is 6912, while the sum is 29.

The square root of 326244161 is about 18062.2302332796. The cubic root of 326244161 is about 688.4106533273.

Adding to 326244161 its reverse (161442623), we get a palindrome (487686784).

The spelling of 326244161 in words is "three hundred twenty-six million, two hundred forty-four thousand, one hundred sixty-one".