12516136 has 32 divisors (see below), whose sum is σ = 25092000. Its totient is φ = 5835456.

The previous prime is 12516121. The next prime is 12516137. The reversal of 12516136 is 63161521.

It is a self number, because there is not a number n which added to its sum of digits gives 12516136.

It is not an unprimeable number, because it can be changed into a prime (12516137) 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, 9570 + ... + 10798.

It is an arithmetic number, because the mean of its divisors is an integer number (784125).

Almost surely, 2^12516136 is an apocalyptic number.

It is an amenable number.

12516136 is an abundant number, since it is smaller than the sum of its proper divisors (12575864).

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

12516136 is a wasteful number, since it uses less digits than its factorization.

12516136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1317 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 12516136 is about 3537.8151449730. The cubic root of 12516136 is about 232.1792609779.

Adding to 12516136 its reverse (63161521), we get a palindrome (75677657).

It can be divided in two parts, 125 and 16136, that added together give a palindrome (16261).

The spelling of 12516136 in words is "twelve million, five hundred sixteen thousand, one hundred thirty-six".