196549 has 2 divisors, whose sum is σ = 196550. Its totient is φ = 196548.

The previous prime is 196543. The next prime is 196561. The reversal of 196549 is 945691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 50625 = 382^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 196549 - 2³ = 196541 is a prime.

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 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, 98274 + 98275.

It is an arithmetic number, because the mean of its divisors is an integer number (98275).

2¹⁹⁶⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

196549 is a deficient number, since it is larger than the sum of its proper divisors (1).

196549 is an equidigital number, since it uses as much as digits as its factorization.

196549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 196549 is about 443.3384711482. The cubic root of 196549 is about 58.1420418677.

The spelling of 196549 in words is "one hundred ninety-six thousand, five hundred forty-nine".