196000243 has 4 divisors (see below), whose sum is σ = 197543680. Its totient is φ = 194456808.

The previous prime is 196000193. The next prime is 196000247. The reversal of 196000243 is 342000691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342000691 = 13337 ⋅25643.

It is a cyclic number.

It is not a de Polignac number, because 196000243 - 2⁹ = 195999731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196000247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771528 + ... + 771781.

It is an arithmetic number, because the mean of its divisors is an integer number (49385920).

Almost surely, 2^196000243 is an apocalyptic number.

196000243 is a deficient number, since it is larger than the sum of its proper divisors (1543437).

196000243 is a wasteful number, since it uses less digits than its factorization.

196000243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543436.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 196000243 is about 14000.0086785687. The cubic root of 196000243 is about 580.8788134132.

The spelling of 196000243 in words is "one hundred ninety-six million, two hundred forty-three", and thus it is an aban number.