194403132247 has 2 divisors, whose sum is σ = 194403132248. Its totient is φ = 194403132246.

The previous prime is 194403132163. The next prime is 194403132269. The reversal of 194403132247 is 742231304491.

194403132247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194403132247 - 2²³ = 194394743639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194403135247) 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 as a sum of consecutive naturals, namely, 97201566123 + 97201566124.

It is an arithmetic number, because the mean of its divisors is an integer number (97201566124).

Almost surely, 2^194403132247 is an apocalyptic number.

194403132247 is a deficient number, since it is larger than the sum of its proper divisors (1).

194403132247 is an equidigital number, since it uses as much as digits as its factorization.

194403132247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 194403132247 in words is "one hundred ninety-four billion, four hundred three million, one hundred thirty-two thousand, two hundred forty-seven".