12692543 has 2 divisors, whose sum is σ = 12692544. Its totient is φ = 12692542.

The previous prime is 12692539. The next prime is 12692549. The reversal of 12692543 is 34529621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12692543 - 2² = 12692539 is a prime.

It is a super-2 number, since 2×12692543² = 322201295613698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12692549) 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, 6346271 + 6346272.

It is an arithmetic number, because the mean of its divisors is an integer number (6346272).

Almost surely, 2^12692543 is an apocalyptic number.

12692543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12692543 is an equidigital number, since it uses as much as digits as its factorization.

12692543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 12692543 is about 3562.6595402873. The cubic root of 12692543 is about 233.2649824741.

The spelling of 12692543 in words is "twelve million, six hundred ninety-two thousand, five hundred forty-three".