196543 has 2 divisors, whose sum is σ = 196544. Its totient is φ = 196542.

The previous prime is 196541. The next prime is 196549. The reversal of 196543 is 345691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196543 - 2¹ = 196541 is a prime.

Together with 196541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98271 + 98272.

It is an arithmetic number, because the mean of its divisors is an integer number (98272).

196543 is a Friedman number, since it can be written as 4^(9-1)*3-65, using all its digits and the basic arithmetic operations.

2¹⁹⁶⁵⁴³ is an apocalyptic number.

196543 is a deficient number, since it is larger than the sum of its proper divisors (1).

196543 is an equidigital number, since it uses as much as digits as its factorization.

196543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 196543 is about 443.3317042577. The cubic root of 196543 is about 58.1414502327.

The spelling of 196543 in words is "one hundred ninety-six thousand, five hundred forty-three".