13523413 has 2 divisors, whose sum is σ = 13523414. Its totient is φ = 13523412.

The previous prime is 13523387. The next prime is 13523429. The reversal of 13523413 is 31432531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13235044 + 288369 = 3638^2 + 537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13523413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13523513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6761706 + 6761707.

It is an arithmetic number, because the mean of its divisors is an integer number (6761707).

Almost surely, 2^13523413 is an apocalyptic number.

It is an amenable number.

13523413 is a deficient number, since it is larger than the sum of its proper divisors (1).

13523413 is an equidigital number, since it uses as much as digits as its factorization.

13523413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 13523413 is about 3677.4193397001. The cubic root of 13523413 is about 238.2477294841.

Adding to 13523413 its reverse (31432531), we get a palindrome (44955944).

The spelling of 13523413 in words is "thirteen million, five hundred twenty-three thousand, four hundred thirteen".