12554243 has 4 divisors (see below), whose sum is σ = 13519968. Its totient is φ = 11588520.

The previous prime is 12554233. The next prime is 12554249. The reversal of 12554243 is 34245521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34245521 = 167 ⋅205063.

It is a cyclic number.

It is not a de Polignac number, because 12554243 - 2¹² = 12550147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12554249) 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 3 ways as a sum of consecutive naturals, for example, 482843 + ... + 482868.

It is an arithmetic number, because the mean of its divisors is an integer number (3379992).

Almost surely, 2^12554243 is an apocalyptic number.

12554243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12554243 is a deficient number, since it is larger than the sum of its proper divisors (965725).

12554243 is an equidigital number, since it uses as much as digits as its factorization.

12554243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965724.

The product of its digits is 4800, while the sum is 26.

The square root of 12554243 is about 3543.1967204771. The cubic root of 12554243 is about 232.4146555379.

Adding to 12554243 its reverse (34245521), we get a palindrome (46799764).

The spelling of 12554243 in words is "twelve million, five hundred fifty-four thousand, two hundred forty-three".