12709136 has 20 divisors (see below), whose sum is σ = 26862864. Its totient is φ = 5776800.

The previous prime is 12709127. The next prime is 12709141. The reversal of 12709136 is 63190721.

It is a junction number, because it is equal to n+sod(n) for n = 12709099 and 12709108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35930 + ... + 36281.

Almost surely, 2^12709136 is an apocalyptic number.

12709136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12709136 is an abundant number, since it is smaller than the sum of its proper divisors (14153728).

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

12709136 is a wasteful number, since it uses less digits than its factorization.

12709136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72230 (or 72224 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 12709136 is about 3564.9875175097. The cubic root of 12709136 is about 233.3665875507.

Adding to 12709136 its reverse (63190721), we get a palindrome (75899857).

The spelling of 12709136 in words is "twelve million, seven hundred nine thousand, one hundred thirty-six".