12126785 has 16 divisors (see below), whose sum is σ = 16424640. Its totient is φ = 8514240.

The previous prime is 12126761. The next prime is 12126791. The reversal of 12126785 is 58762121.

It is not a de Polignac number, because 12126785 - 2¹⁴ = 12110401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2207 + ... + 5396.

It is an arithmetic number, because the mean of its divisors is an integer number (1026540).

Almost surely, 2^12126785 is an apocalyptic number.

It is an amenable number.

12126785 is a deficient number, since it is larger than the sum of its proper divisors (4297855).

12126785 is a wasteful number, since it uses less digits than its factorization.

12126785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648.

The product of its digits is 6720, while the sum is 32.

The square root of 12126785 is about 3482.3533709260. The cubic root of 12126785 is about 229.7463176532.

It can be divided in two parts, 1212 and 6785, that added together give a palindrome (7997).

The spelling of 12126785 in words is "twelve million, one hundred twenty-six thousand, seven hundred eighty-five".