13758289 has 2 divisors, whose sum is σ = 13758290. Its totient is φ = 13758288.

The previous prime is 13758281. The next prime is 13758293. The reversal of 13758289 is 98285731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13749264 + 9025 = 3708^2 + 95^2 .

It is an emirp because it is prime and its reverse (98285731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13758289 - 2³ = 13758281 is a prime.

It is not a weakly prime, because it can be changed into another prime (13758281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6879144 + 6879145.

It is an arithmetic number, because the mean of its divisors is an integer number (6879145).

Almost surely, 2^13758289 is an apocalyptic number.

It is an amenable number.

13758289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13758289 is an equidigital number, since it uses as much as digits as its factorization.

13758289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 13758289 is about 3709.2167636848. The cubic root of 13758289 is about 239.6191238848.

The spelling of 13758289 in words is "thirteen million, seven hundred fifty-eight thousand, two hundred eighty-nine".