13013528 has 16 divisors (see below), whose sum is σ = 26618760. Its totient is φ = 5915200.

The previous prime is 13013527. The next prime is 13013543. The reversal of 13013528 is 82531031.

It is a super-2 number, since 2×13013528² = 338703822013568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73853 + ... + 74028.

Almost surely, 2^13013528 is an apocalyptic number.

It is an amenable number.

13013528 is an abundant number, since it is smaller than the sum of its proper divisors (13605232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13013528 is a wasteful number, since it uses less digits than its factorization.

13013528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147898 (or 147894 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 13013528 is about 3607.4267837338. The cubic root of 13013528 is about 235.2150016655.

Adding to 13013528 its reverse (82531031), we get a palindrome (95544559).

The spelling of 13013528 in words is "thirteen million, thirteen thousand, five hundred twenty-eight".