194848243 has 2 divisors, whose sum is σ = 194848244. Its totient is φ = 194848242.

The previous prime is 194848219. The next prime is 194848279. The reversal of 194848243 is 342848491.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194848243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194848243.

It is not a weakly prime, because it can be changed into another prime (194848943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97424121 + 97424122.

It is an arithmetic number, because the mean of its divisors is an integer number (97424122).

Almost surely, 2^194848243 is an apocalyptic number.

194848243 is a deficient number, since it is larger than the sum of its proper divisors (1).

194848243 is an equidigital number, since it uses as much as digits as its factorization.

194848243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 43.

The square root of 194848243 is about 13958.8052139143. The cubic root of 194848243 is about 579.7385295875.

The spelling of 194848243 in words is "one hundred ninety-four million, eight hundred forty-eight thousand, two hundred forty-three".