13523013 has 12 divisors (see below), whose sum is σ = 22323808. Its totient is φ = 7727400.

The previous prime is 13523009. The next prime is 13523017. The reversal of 13523013 is 31032531.

It is an interprime number because it is at equal distance from previous prime (13523009) and next prime (13523017).

It is not a de Polignac number, because 13523013 - 2² = 13523009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13523017) 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 in 11 ways as a sum of consecutive naturals, for example, 107263 + ... + 107388.

Almost surely, 2^13523013 is an apocalyptic number.

It is an amenable number.

13523013 is a deficient number, since it is larger than the sum of its proper divisors (8800795).

13523013 is a wasteful number, since it uses less digits than its factorization.

13523013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214664 (or 214661 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 13523013 is about 3677.3649533328. The cubic root of 13523013 is about 238.2453804708.

Adding to 13523013 its reverse (31032531), we get a palindrome (44555544).

The spelling of 13523013 in words is "thirteen million, five hundred twenty-three thousand, thirteen".