12126782 has 4 divisors (see below), whose sum is σ = 18190176. Its totient is φ = 6063390.

The previous prime is 12126761. The next prime is 12126791. The reversal of 12126782 is 28762121.

12126782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28762121 = 23 ⋅1250527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3031694 + ... + 3031697.

It is an arithmetic number, because the mean of its divisors is an integer number (4547544).

Almost surely, 2^12126782 is an apocalyptic number.

12126782 is a deficient number, since it is larger than the sum of its proper divisors (6063394).

12126782 is an equidigital number, since it uses as much as digits as its factorization.

12126782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6063393.

The product of its digits is 2688, while the sum is 29.

The square root of 12126782 is about 3482.3529401828. The cubic root of 12126782 is about 229.7462987078.

The spelling of 12126782 in words is "twelve million, one hundred twenty-six thousand, seven hundred eighty-two".