12814121 has 4 divisors (see below), whose sum is σ = 12968592. Its totient is φ = 12659652.

The previous prime is 12814117. The next prime is 12814147. The reversal of 12814121 is 12141821.

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.

It is a cyclic number.

It is not a de Polignac number, because 12814121 - 2² = 12814117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12814093 and 12814102.

It is not an unprimeable number, because it can be changed into a prime (12814111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77111 + ... + 77276.

It is an arithmetic number, because the mean of its divisors is an integer number (3242148).

Almost surely, 2^12814121 is an apocalyptic number.

It is an amenable number.

12814121 is a deficient number, since it is larger than the sum of its proper divisors (154471).

12814121 is an equidigital number, since it uses as much as digits as its factorization.

12814121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154470.

The product of its digits is 128, while the sum is 20.

The square root of 12814121 is about 3579.6816897596. The cubic root of 12814121 is about 234.0074083904.

Adding to 12814121 its reverse (12141821), we get a palindrome (24955942).

The spelling of 12814121 in words is "twelve million, eight hundred fourteen thousand, one hundred twenty-one".