12234161 has 4 divisors (see below), whose sum is σ = 12564852. Its totient is φ = 11903472.

The previous prime is 12234151. The next prime is 12234163. The reversal of 12234161 is 16143221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16143221 = 709 ⋅22769.

It can be written as a sum of positive squares in 2 ways, for example, as 9150625 + 3083536 = 3025^2 + 1756^2 .

It is a cyclic number.

It is not a de Polignac number, because 12234161 - 2⁶ = 12234097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12234163) 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, 165290 + ... + 165363.

It is an arithmetic number, because the mean of its divisors is an integer number (3141213).

Almost surely, 2^12234161 is an apocalyptic number.

It is an amenable number.

12234161 is a deficient number, since it is larger than the sum of its proper divisors (330691).

12234161 is an equidigital number, since it uses as much as digits as its factorization.

12234161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330690.

The product of its digits is 288, while the sum is 20.

The square root of 12234161 is about 3497.7365538302. The cubic root of 12234161 is about 230.4224184176.

Adding to 12234161 its reverse (16143221), we get a palindrome (28377382).

The spelling of 12234161 in words is "twelve million, two hundred thirty-four thousand, one hundred sixty-one".