12136660 has 12 divisors (see below), whose sum is σ = 25487028. Its totient is φ = 4854656.

The previous prime is 12136651. The next prime is 12136667. The reversal of 12136660 is 6663121.

It can be written as a sum of positive squares in 2 ways, for example, as 2125764 + 10010896 = 1458^2 + 3164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12136667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303397 + ... + 303436.

It is an arithmetic number, because the mean of its divisors is an integer number (2123919).

Almost surely, 2^12136660 is an apocalyptic number.

12136660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12136660 is an abundant number, since it is smaller than the sum of its proper divisors (13350368).

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

12136660 is a wasteful number, since it uses less digits than its factorization.

12136660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606842 (or 606840 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 12136660 is about 3483.7709453981. The cubic root of 12136660 is about 229.8086625463.

Adding to 12136660 its reverse (6663121), we get a palindrome (18799781).

The spelling of 12136660 in words is "twelve million, one hundred thirty-six thousand, six hundred sixty".