194573912201 has 2 divisors, whose sum is σ = 194573912202. Its totient is φ = 194573912200.

The previous prime is 194573912111. The next prime is 194573912243. The reversal of 194573912201 is 102219375491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182175312400 + 12398599801 = 426820^2 + 111349^2 .

It is a cyclic number.

It is not a de Polignac number, because 194573912201 - 2¹⁸ = 194573650057 is a prime.

It is not a weakly prime, because it can be changed into another prime (194573912251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97286956100 + 97286956101.

It is an arithmetic number, because the mean of its divisors is an integer number (97286956101).

Almost surely, 2^194573912201 is an apocalyptic number.

It is an amenable number.

194573912201 is a deficient number, since it is larger than the sum of its proper divisors (1).

194573912201 is an equidigital number, since it uses as much as digits as its factorization.

194573912201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 194573912201 in words is "one hundred ninety-four billion, five hundred seventy-three million, nine hundred twelve thousand, two hundred one".