194423096143 has 2 divisors, whose sum is σ = 194423096144. Its totient is φ = 194423096142.

The previous prime is 194423096141. The next prime is 194423096209. The reversal of 194423096143 is 341690324491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194423096143 - 2¹ = 194423096141 is a prime.

Together with 194423096141, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 194423096093 and 194423096102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194423096141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97211548071 + 97211548072.

It is an arithmetic number, because the mean of its divisors is an integer number (97211548072).

Almost surely, 2^194423096143 is an apocalyptic number.

194423096143 is a deficient number, since it is larger than the sum of its proper divisors (1).

194423096143 is an equidigital number, since it uses as much as digits as its factorization.

194423096143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 194423096143 in words is "one hundred ninety-four billion, four hundred twenty-three million, ninety-six thousand, one hundred forty-three".