12137636 has 24 divisors (see below), whose sum is σ = 24736320. Its totient is φ = 5103072.

The previous prime is 12137633. The next prime is 12137651. The reversal of 12137636 is 63673121.

It is a junction number, because it is equal to n+sod(n) for n = 12137599 and 12137608.

It is not an unprimeable number, because it can be changed into a prime (12137633) 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 7 ways as a sum of consecutive naturals, for example, 2606 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (1030680).

Almost surely, 2^12137636 is an apocalyptic number.

It is an amenable number.

12137636 is an abundant number, since it is smaller than the sum of its proper divisors (12598684).

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

12137636 is a wasteful number, since it uses less digits than its factorization.

12137636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243 (or 8241 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 12137636 is about 3483.9110206778. The cubic root of 12137636 is about 229.8148225947.

It can be divided in two parts, 121 and 37636, that multiplied together give a square (4553956 = 2134²).

The spelling of 12137636 in words is "twelve million, one hundred thirty-seven thousand, six hundred thirty-six".