13426121 has 2 divisors, whose sum is σ = 13426122. Its totient is φ = 13426120.

The previous prime is 13426117. The next prime is 13426187. The reversal of 13426121 is 12162431.

13426121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13424896 + 1225 = 3664^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 13426121 - 2² = 13426117 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13426093 and 13426102.

It is not a weakly prime, because it can be changed into another prime (13426421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6713060 + 6713061.

It is an arithmetic number, because the mean of its divisors is an integer number (6713061).

Almost surely, 2^13426121 is an apocalyptic number.

It is an amenable number.

13426121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13426121 is an equidigital number, since it uses as much as digits as its factorization.

13426121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 13426121 is about 3664.1671632173. The cubic root of 13426121 is about 237.6750089579.

Adding to 13426121 its reverse (12162431), we get a palindrome (25588552).

The spelling of 13426121 in words is "thirteen million, four hundred twenty-six thousand, one hundred twenty-one".