13523329 has 2 divisors, whose sum is σ = 13523330. Its totient is φ = 13523328.

The previous prime is 13523311. The next prime is 13523359. The reversal of 13523329 is 92332531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13490929 + 32400 = 3673^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 13523329 - 2⁵ = 13523297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13523297 and 13523306.

It is not a weakly prime, because it can be changed into another prime (13523359) 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, 6761664 + 6761665.

It is an arithmetic number, because the mean of its divisors is an integer number (6761665).

Almost surely, 2^13523329 is an apocalyptic number.

It is an amenable number.

13523329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13523329 is an equidigital number, since it uses as much as digits as its factorization.

13523329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 28.

The square root of 13523329 is about 3677.4079186296. The cubic root of 13523329 is about 238.2472361951.

The spelling of 13523329 in words is "thirteen million, five hundred twenty-three thousand, three hundred twenty-nine".