12307161 has 8 divisors (see below), whose sum is σ = 16569280. Its totient is φ = 8124912.

The previous prime is 12307109. The next prime is 12307171. The reversal of 12307161 is 16170321.

12307161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12307161 - 2⁹ = 12306649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12307171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19606 + ... + 20223.

It is an arithmetic number, because the mean of its divisors is an integer number (2071160).

Almost surely, 2^12307161 is an apocalyptic number.

It is an amenable number.

12307161 is a deficient number, since it is larger than the sum of its proper divisors (4262119).

12307161 is a wasteful number, since it uses less digits than its factorization.

12307161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39935.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 12307161 is about 3508.1563534141. The cubic root of 12307161 is about 230.8798122929.

Adding to 12307161 its reverse (16170321), we get a palindrome (28477482).

The spelling of 12307161 in words is "twelve million, three hundred seven thousand, one hundred sixty-one".