13287136 has 24 divisors (see below), whose sum is σ = 26271000. Its totient is φ = 6615168.

The previous prime is 13287119. The next prime is 13287139. The reversal of 13287136 is 63178231.

It is a junction number, because it is equal to n+sod(n) for n = 13287098 and 13287107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13287139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8115 + ... + 9613.

It is an arithmetic number, because the mean of its divisors is an integer number (1094625).

Almost surely, 2^13287136 is an apocalyptic number.

13287136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13287136 is a deficient number, since it is larger than the sum of its proper divisors (12983864).

13287136 is a wasteful number, since it uses less digits than its factorization.

13287136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786 (or 1778 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 13287136 is about 3645.1523973628. The cubic root of 13287136 is about 236.8520384173.

It can be divided in two parts, 1328 and 7136, that added together give a square (8464 = 92²).

The spelling of 13287136 in words is "thirteen million, two hundred eighty-seven thousand, one hundred thirty-six".