12736845 has 48 divisors (see below), whose sum is σ = 25002432. Its totient is φ = 6168960.

The previous prime is 12736837. The next prime is 12736847. The reversal of 12736845 is 54863721.

It is not a de Polignac number, because 12736845 - 2³ = 12736837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12736847) 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 in 47 ways as a sum of consecutive naturals, for example, 12889 + ... + 13841.

It is an arithmetic number, because the mean of its divisors is an integer number (520884).

Almost surely, 2^12736845 is an apocalyptic number.

12736845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12736845 is a deficient number, since it is larger than the sum of its proper divisors (12265587).

12736845 is an equidigital number, since it uses as much as digits as its factorization.

12736845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 972 counting only the distinct ones).

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

The square root of 12736845 is about 3568.8716704303. The cubic root of 12736845 is about 233.5360630380.

It can be divided in two parts, 1273 and 6845, that added together give a palindrome (8118).

The spelling of 12736845 in words is "twelve million, seven hundred thirty-six thousand, eight hundred forty-five".