12168401 has 4 divisors (see below), whose sum is σ = 13906752. Its totient is φ = 10430052.

The previous prime is 12168397. The next prime is 12168421. The reversal of 12168401 is 10486121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10486121 = 103 ⋅101807.

It is a cyclic number.

It is not a de Polignac number, because 12168401 - 2² = 12168397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12168421) 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, 869165 + ... + 869178.

It is an arithmetic number, because the mean of its divisors is an integer number (3476688).

Almost surely, 2^12168401 is an apocalyptic number.

It is an amenable number.

12168401 is a deficient number, since it is larger than the sum of its proper divisors (1738351).

12168401 is an equidigital number, since it uses as much as digits as its factorization.

12168401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738350.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 12168401 is about 3488.3235228402. The cubic root of 12168401 is about 230.0088276385.

The spelling of 12168401 in words is "twelve million, one hundred sixty-eight thousand, four hundred one".