12451343 has 4 divisors (see below), whose sum is σ = 12686328. Its totient is φ = 12216360.

The previous prime is 12451339. The next prime is 12451399. The reversal of 12451343 is 34315421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12451343 - 2² = 12451339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451843) 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 3 ways as a sum of consecutive naturals, for example, 117413 + ... + 117518.

It is an arithmetic number, because the mean of its divisors is an integer number (3171582).

Almost surely, 2^12451343 is an apocalyptic number.

12451343 is a deficient number, since it is larger than the sum of its proper divisors (234985).

12451343 is an equidigital number, since it uses as much as digits as its factorization.

12451343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234984.

The product of its digits is 1440, while the sum is 23.

The square root of 12451343 is about 3528.6460576261. The cubic root of 12451343 is about 231.7779223971. Note that the first 3 decimals are identical.

Adding to 12451343 its reverse (34315421), we get a palindrome (46766764).

The spelling of 12451343 in words is "twelve million, four hundred fifty-one thousand, three hundred forty-three".