8231161 has 9 divisors (see below), whose sum is σ = 8745093. Its totient is φ = 7746300.

The previous prime is 8231159. The next prime is 8231177. The reversal of 8231161 is 1611328.

The square root of 8231161 is 2869.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 8231161 - 2¹ = 8231159 is a prime.

It is a super-2 number, since 2×8231161² = 135504022815842, which contains 22 as substring.

It is a Duffinian number.

8231161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8261161) 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, 54436 + ... + 54586.

It is an arithmetic number, because the mean of its divisors is an integer number (971677).

Almost surely, 2^8231161 is an apocalyptic number.

8231161 is the 2869-th square number.

8231161 is the 1435-th centered octagonal number.

It is an amenable number.

8231161 is a deficient number, since it is larger than the sum of its proper divisors (513932).

8231161 is an equidigital number, since it uses as much as digits as its factorization.

8231161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 170 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The cubic root of 8231161 is about 201.9080799309.

Adding to 8231161 its reverse (1611328), we get a palindrome (9842489).

The spelling of 8231161 in words is "eight million, two hundred thirty-one thousand, one hundred sixty-one".