194707066 has 4 divisors (see below), whose sum is σ = 292060602. Its totient is φ = 97353532.

The previous prime is 194707057. The next prime is 194707067. The reversal of 194707066 is 660707491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 184280625 + 10426441 = 13575^2 + 3229^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (194707067) 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, 48676765 + ... + 48676768.

Almost surely, 2^194707066 is an apocalyptic number.

194707066 is a deficient number, since it is larger than the sum of its proper divisors (97353536).

194707066 is an equidigital number, since it uses as much as digits as its factorization.

194707066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97353535.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 194707066 is about 13953.7473819759. The cubic root of 194707066 is about 579.5984795325.

The spelling of 194707066 in words is "one hundred ninety-four million, seven hundred seven thousand, sixty-six".