13411421 has 2 divisors, whose sum is σ = 13411422. Its totient is φ = 13411420.

The previous prime is 13411417. The next prime is 13411441. The reversal of 13411421 is 12411431.

It is a happy number.

13411421 is digitally balanced in base 2, 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., 13039321 + 372100 = 3611^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 13411421 - 2² = 13411417 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13411421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13411441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6705710 + 6705711.

It is an arithmetic number, because the mean of its divisors is an integer number (6705711).

Almost surely, 2^13411421 is an apocalyptic number.

It is an amenable number.

13411421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13411421 is an equidigital number, since it uses as much as digits as its factorization.

13411421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 17.

The square root of 13411421 is about 3662.1607010070. The cubic root of 13411421 is about 237.5882353590.

Adding to 13411421 its reverse (12411431), we get a palindrome (25822852).

The spelling of 13411421 in words is "thirteen million, four hundred eleven thousand, four hundred twenty-one".