13245409 has 2 divisors, whose sum is σ = 13245410. Its totient is φ = 13245408.

The previous prime is 13245403. The next prime is 13245437. The reversal of 13245409 is 90454231.

13245409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13245437) can be obtained adding 13245409 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10595025 + 2650384 = 3255^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 13245409 - 2⁹ = 13244897 is a prime.

It is not a weakly prime, because it can be changed into another prime (13245403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622704 + 6622705.

It is an arithmetic number, because the mean of its divisors is an integer number (6622705).

Almost surely, 2^13245409 is an apocalyptic number.

It is an amenable number.

13245409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13245409 is an equidigital number, since it uses as much as digits as its factorization.

13245409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 13245409 is about 3639.4242676555. The cubic root of 13245409 is about 236.6038412445.

The spelling of 13245409 in words is "thirteen million, two hundred forty-five thousand, four hundred nine".