12072586 has 4 divisors (see below), whose sum is σ = 18108882. Its totient is φ = 6036292.

The previous prime is 12072553. The next prime is 12072589. The reversal of 12072586 is 68527021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68527021 = 1579 ⋅43399.

It can be written as a sum of positive squares in only one way, i.e., 8886361 + 3186225 = 2981^2 + 1785^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12072589) 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 as a sum of consecutive naturals, namely, 3018145 + ... + 3018148.

Almost surely, 2^12072586 is an apocalyptic number.

12072586 is a deficient number, since it is larger than the sum of its proper divisors (6036296).

12072586 is an equidigital number, since it uses as much as digits as its factorization.

12072586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036295.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 12072586 is about 3474.5627062984. The cubic root of 12072586 is about 229.4035332649.

The spelling of 12072586 in words is "twelve million, seventy-two thousand, five hundred eighty-six".