13487136 has 96 divisors (see below), whose sum is σ = 38864448. Its totient is φ = 4070400.

The previous prime is 13487119. The next prime is 13487141. The reversal of 13487136 is 63178431.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 13487097 and 13487106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125995 + ... + 126101.

It is an arithmetic number, because the mean of its divisors is an integer number (404838).

Almost surely, 2^13487136 is an apocalyptic number.

13487136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13487136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19432224).

13487136 is an abundant number, since it is smaller than the sum of its proper divisors (25377312).

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

13487136 is a wasteful number, since it uses less digits than its factorization.

13487136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 226 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 13487136 is about 3672.4836282821. The cubic root of 13487136 is about 238.0345029187.

The spelling of 13487136 in words is "thirteen million, four hundred eighty-seven thousand, one hundred thirty-six".