13368529 has 2 divisors, whose sum is σ = 13368530. Its totient is φ = 13368528.

The previous prime is 13368527. The next prime is 13368541. The reversal of 13368529 is 92586331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13068225 + 300304 = 3615^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 13368529 - 2¹ = 13368527 is a prime.

Together with 13368527, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13368521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6684264 + 6684265.

It is an arithmetic number, because the mean of its divisors is an integer number (6684265).

Almost surely, 2^13368529 is an apocalyptic number.

It is an amenable number.

13368529 is a deficient number, since it is larger than the sum of its proper divisors (1).

13368529 is an equidigital number, since it uses as much as digits as its factorization.

13368529 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 13368529 is about 3656.2999056423. The cubic root of 13368529 is about 237.3346823679.

The spelling of 13368529 in words is "thirteen million, three hundred sixty-eight thousand, five hundred twenty-nine".