13538136 has 16 divisors (see below), whose sum is σ = 33845400. Its totient is φ = 4512704.

The previous prime is 13538131. The next prime is 13538143. The reversal of 13538136 is 63183531.

13538136 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13538136² = 366562252708992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13538131) 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, 282021 + ... + 282068.

Almost surely, 2^13538136 is an apocalyptic number.

It is an amenable number.

13538136 is an abundant number, since it is smaller than the sum of its proper divisors (20307264).

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

13538136 is a wasteful number, since it uses less digits than its factorization.

13538136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564098 (or 564094 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 13538136 is about 3679.4206065629. The cubic root of 13538136 is about 238.3341585814.

The spelling of 13538136 in words is "thirteen million, five hundred thirty-eight thousand, one hundred thirty-six".