194342173 has 4 divisors (see below), whose sum is σ = 199082268. Its totient is φ = 189602080.

The previous prime is 194342117. The next prime is 194342177. The reversal of 194342173 is 371243491.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75030244 + 119311929 = 8662^2 + 10923^2 .

It is a cyclic number.

It is not a de Polignac number, because 194342173 - 2⁹ = 194341661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194342177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369986 + ... + 2370067.

It is an arithmetic number, because the mean of its divisors is an integer number (49770567).

Almost surely, 2^194342173 is an apocalyptic number.

It is an amenable number.

194342173 is a deficient number, since it is larger than the sum of its proper divisors (4740095).

194342173 is an equidigital number, since it uses as much as digits as its factorization.

194342173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740094.

The product of its digits is 18144, while the sum is 34.

The square root of 194342173 is about 13940.6661605534. Note that the first 3 decimals coincide. The cubic root of 194342173 is about 579.2361854018.

The spelling of 194342173 in words is "one hundred ninety-four million, three hundred forty-two thousand, one hundred seventy-three".