12563343 has 48 divisors (see below), whose sum is σ = 20975136. Its totient is φ = 7464960.

The previous prime is 12563333. The next prime is 12563363. The reversal of 12563343 is 34336521.

It is a happy number.

12563343 is a `hidden beast` number, since 1 + 25 + 633 + 4 + 3 = 666.

It is not a de Polignac number, because 12563343 - 2²¹ = 10466191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12563333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129471 + ... + 129567.

It is an arithmetic number, because the mean of its divisors is an integer number (436982).

Almost surely, 2^12563343 is an apocalyptic number.

12563343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12563343 is a deficient number, since it is larger than the sum of its proper divisors (8411793).

12563343 is an equidigital number, since it uses as much as digits as its factorization.

12563343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 154 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 12563343 is about 3544.4806389653. The cubic root of 12563343 is about 232.4707975810.

Adding to 12563343 its reverse (34336521), we get a palindrome (46899864).

The spelling of 12563343 in words is "twelve million, five hundred sixty-three thousand, three hundred forty-three".