13441409 has 2 divisors, whose sum is σ = 13441410. Its totient is φ = 13441408.

The previous prime is 13441391. The next prime is 13441423. The reversal of 13441409 is 90414431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 3073009 = 3220^2 + 1753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13441409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13441429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6720704 + 6720705.

It is an arithmetic number, because the mean of its divisors is an integer number (6720705).

Almost surely, 2^13441409 is an apocalyptic number.

It is an amenable number.

13441409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13441409 is an equidigital number, since it uses as much as digits as its factorization.

13441409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13441409 is about 3666.2527190580. The cubic root of 13441409 is about 237.7651863381.

The spelling of 13441409 in words is "thirteen million, four hundred forty-one thousand, four hundred nine".