12417161 has 4 divisors (see below), whose sum is σ = 12424212. Its totient is φ = 12410112.

The previous prime is 12417151. The next prime is 12417169. The reversal of 12417161 is 16171421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1394761 + 11022400 = 1181^2 + 3320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12417161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12417169) 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, 1625 + ... + 5241.

It is an arithmetic number, because the mean of its divisors is an integer number (3106053).

Almost surely, 2^12417161 is an apocalyptic number.

It is an amenable number.

12417161 is a deficient number, since it is larger than the sum of its proper divisors (7051).

12417161 is an equidigital number, since it uses as much as digits as its factorization.

12417161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050.

The product of its digits is 336, while the sum is 23.

The square root of 12417161 is about 3523.7992281059. The cubic root of 12417161 is about 231.5656322080.

Adding to 12417161 its reverse (16171421), we get a palindrome (28588582).

The spelling of 12417161 in words is "twelve million, four hundred seventeen thousand, one hundred sixty-one".