12736485 has 24 divisors (see below), whose sum is σ = 23376600. Its totient is φ = 6392832.

The previous prime is 12736447. The next prime is 12736487. The reversal of 12736485 is 58463721.

12736485 is a `hidden beast` number, since 1 + 2 + 7 + 3 + 648 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4198401 + 8538084 = 2049^2 + 2922^2 .

It is not a de Polignac number, because 12736485 - 2⁹ = 12735973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12736487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7560 + ... + 9089.

It is an arithmetic number, because the mean of its divisors is an integer number (974025).

Almost surely, 2^12736485 is an apocalyptic number.

12736485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12736485 is a deficient number, since it is larger than the sum of its proper divisors (10640115).

12736485 is a wasteful number, since it uses less digits than its factorization.

12736485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16677 (or 16674 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 12736485 is about 3568.8212339651. The cubic root of 12736485 is about 233.5338627607.

It can be divided in two parts, 127364 and 85, that added together give a square (127449 = 357²).

The spelling of 12736485 in words is "twelve million, seven hundred thirty-six thousand, four hundred eighty-five".