12785012 has 6 divisors (see below), whose sum is σ = 22373778. Its totient is φ = 6392504.

The previous prime is 12785011. The next prime is 12785021. The reversal of 12785012 is 21058721.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 139876 = 3556^2 + 374^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785011) 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, 1598123 + ... + 1598130.

It is an arithmetic number, because the mean of its divisors is an integer number (3728963).

Almost surely, 2^12785012 is an apocalyptic number.

It is an amenable number.

12785012 is a deficient number, since it is larger than the sum of its proper divisors (9588766).

12785012 is a wasteful number, since it uses less digits than its factorization.

12785012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196257 (or 3196255 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 12785012 is about 3575.6135137903. The cubic root of 12785012 is about 233.8300809435.

The spelling of 12785012 in words is "twelve million, seven hundred eighty-five thousand, twelve".