12523843 has 2 divisors, whose sum is σ = 12523844. Its totient is φ = 12523842.

The previous prime is 12523837. The next prime is 12523859. The reversal of 12523843 is 34832521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12523843 - 2⁵ = 12523811 is a prime.

It is not a weakly prime, because it can be changed into another prime (12523243) 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 as a sum of consecutive naturals, namely, 6261921 + 6261922.

It is an arithmetic number, because the mean of its divisors is an integer number (6261922).

Almost surely, 2^12523843 is an apocalyptic number.

12523843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523843 is an equidigital number, since it uses as much as digits as its factorization.

12523843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 12523843 is about 3538.9042089325. The cubic root of 12523843 is about 232.2269071632.

It can be divided in two parts, 12523 and 843, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 12523843 in words is "twelve million, five hundred twenty-three thousand, eight hundred forty-three".