12164461 has 2 divisors, whose sum is σ = 12164462. Its totient is φ = 12164460.

The previous prime is 12164459. The next prime is 12164473. The reversal of 12164461 is 16446121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 5788836 = 2525^2 + 2406^2 .

It is an emirp because it is prime and its reverse (16446121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12164461 - 2¹ = 12164459 is a prime.

It is a super-2 number, since 2×12164461² = 295948222841042, which contains 22 as substring.

Together with 12164459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12164491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6082230 + 6082231.

It is an arithmetic number, because the mean of its divisors is an integer number (6082231).

Almost surely, 2^12164461 is an apocalyptic number.

It is an amenable number.

12164461 is a deficient number, since it is larger than the sum of its proper divisors (1).

12164461 is an equidigital number, since it uses as much as digits as its factorization.

12164461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 12164461 is about 3487.7587359220. The cubic root of 12164461 is about 229.9840001472.

The spelling of 12164461 in words is "twelve million, one hundred sixty-four thousand, four hundred sixty-one".