12137684 has 12 divisors (see below), whose sum is σ = 22874964. Its totient is φ = 5601984.

The previous prime is 12137683. The next prime is 12137693. The reversal of 12137684 is 48673121.

12137684 = T₁₃₆₀ + T₁₃₆₁ + ... + T₁₃₇₂.

12137684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5522500 + 6615184 = 2350^2 + 2572^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12137684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12137683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116657 + ... + 116760.

It is an arithmetic number, because the mean of its divisors is an integer number (1906247).

Almost surely, 2^12137684 is an apocalyptic number.

It is an amenable number.

12137684 is a deficient number, since it is larger than the sum of its proper divisors (10737280).

12137684 is a wasteful number, since it uses less digits than its factorization.

12137684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233434 (or 233432 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 12137684 is about 3483.9179094806. The cubic root of 12137684 is about 229.8151255394.

It can be divided in two parts, 12137 and 684, that added together give a palindrome (12821).

The spelling of 12137684 in words is "twelve million, one hundred thirty-seven thousand, six hundred eighty-four".