12959543 has 2 divisors, whose sum is σ = 12959544. Its totient is φ = 12959542.

The previous prime is 12959533. The next prime is 12959561. The reversal of 12959543 is 34595921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12959543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12959497 and 12959506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12959503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6479771 + 6479772.

It is an arithmetic number, because the mean of its divisors is an integer number (6479772).

Almost surely, 2^12959543 is an apocalyptic number.

12959543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12959543 is an equidigital number, since it uses as much as digits as its factorization.

12959543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 38.

The square root of 12959543 is about 3599.9365272182. The cubic root of 12959543 is about 234.8892974894.

The spelling of 12959543 in words is "twelve million, nine hundred fifty-nine thousand, five hundred forty-three".