12451843 has 2 divisors, whose sum is σ = 12451844. Its totient is φ = 12451842.

The previous prime is 12451841. The next prime is 12451847. The reversal of 12451843 is 34815421.

It is a weak prime.

It is an emirp because it is prime and its reverse (34815421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12451843 - 2¹ = 12451841 is a prime.

Together with 12451841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12451841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6225921 + 6225922.

It is an arithmetic number, because the mean of its divisors is an integer number (6225922).

Almost surely, 2^12451843 is an apocalyptic number.

12451843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12451843 is an equidigital number, since it uses as much as digits as its factorization.

12451843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

The square root of 12451843 is about 3528.7169056188. The cubic root of 12451843 is about 231.7810248043.

The spelling of 12451843 in words is "twelve million, four hundred fifty-one thousand, eight hundred forty-three".