13356289 has 2 divisors, whose sum is σ = 13356290. Its totient is φ = 13356288.

The previous prime is 13356281. The next prime is 13356313. The reversal of 13356289 is 98265331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12837889 + 518400 = 3583^2 + 720^2 .

It is an emirp because it is prime and its reverse (98265331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13356289 - 2³ = 13356281 is a prime.

It is not a weakly prime, because it can be changed into another prime (13356281) 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 as a sum of consecutive naturals, namely, 6678144 + 6678145.

It is an arithmetic number, because the mean of its divisors is an integer number (6678145).

Almost surely, 2^13356289 is an apocalyptic number.

It is an amenable number.

13356289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13356289 is an equidigital number, since it uses as much as digits as its factorization.

13356289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 13356289 is about 3654.6256990286. The cubic root of 13356289 is about 237.2622270378.

The spelling of 13356289 in words is "thirteen million, three hundred fifty-six thousand, two hundred eighty-nine".