194461312147 has 2 divisors, whose sum is σ = 194461312148. Its totient is φ = 194461312146.

The previous prime is 194461312117. The next prime is 194461312159. The reversal of 194461312147 is 741213164491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194461312147 is a prime.

It is not a weakly prime, because it can be changed into another prime (194461312117) 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, 97230656073 + 97230656074.

It is an arithmetic number, because the mean of its divisors is an integer number (97230656074).

Almost surely, 2^194461312147 is an apocalyptic number.

194461312147 is a deficient number, since it is larger than the sum of its proper divisors (1).

194461312147 is an equidigital number, since it uses as much as digits as its factorization.

194461312147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The spelling of 194461312147 in words is "one hundred ninety-four billion, four hundred sixty-one million, three hundred twelve thousand, one hundred forty-seven".