323686161 has 12 divisors (see below), whose sum is σ = 473952388. Its totient is φ = 212834304.

The previous prime is 323686091. The next prime is 323686189. The reversal of 323686161 is 161686323.

323686161 is a `hidden beast` number, since 3 + 2 + 36 + 8 + 616 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 77792400 + 245893761 = 8820^2 + 15681^2 .

It is not a de Polignac number, because 323686161 - 2¹³ = 323677969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323685161) 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 11 ways as a sum of consecutive naturals, for example, 245680 + ... + 246993.

Almost surely, 2^323686161 is an apocalyptic number.

It is an amenable number.

323686161 is a deficient number, since it is larger than the sum of its proper divisors (150266227).

323686161 is a wasteful number, since it uses less digits than its factorization.

323686161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492752 (or 492749 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 323686161 is about 17991.2801378890. The cubic root of 323686161 is about 686.6067109443.

The spelling of 323686161 in words is "three hundred twenty-three million, six hundred eighty-six thousand, one hundred sixty-one".