13538536 has 32 divisors (see below), whose sum is σ = 28900800. Its totient is φ = 5885440.

The previous prime is 13538533. The next prime is 13538543. The reversal of 13538536 is 63583531.

13538536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13538531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (903150).

Almost surely, 2^13538536 is an apocalyptic number.

It is an amenable number.

13538536 is an abundant number, since it is smaller than the sum of its proper divisors (15362264).

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

13538536 is a wasteful number, since it uses less digits than its factorization.

13538536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6729 (or 6725 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 13538536 is about 3679.4749625456. The cubic root of 13538536 is about 238.3365058450.

It can be divided in two parts, 1353 and 8536, that added together give a palindrome (9889).

The spelling of 13538536 in words is "thirteen million, five hundred thirty-eight thousand, five hundred thirty-six".