12743455 has 12 divisors (see below), whose sum is σ = 16246440. Its totient is φ = 9593984.

The previous prime is 12743453. The next prime is 12743477. The reversal of 12743455 is 55434721.

It is not a de Polignac number, because 12743455 - 2¹ = 12743453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743453) 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 11 ways as a sum of consecutive naturals, for example, 2965 + ... + 5854.

It is an arithmetic number, because the mean of its divisors is an integer number (1353870).

Almost surely, 2^12743455 is an apocalyptic number.

12743455 is a deficient number, since it is larger than the sum of its proper divisors (3502985).

12743455 is an equidigital number, since it uses as much as digits as its factorization.

12743455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8858 (or 8841 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 12743455 is about 3569.7976133109. The cubic root of 12743455 is about 233.5764552077.

The spelling of 12743455 in words is "twelve million, seven hundred forty-three thousand, four hundred fifty-five".