194324161 has 8 divisors (see below), whose sum is σ = 207138600. Its totient is φ = 181663488.

The previous prime is 194324147. The next prime is 194324167. The reversal of 194324161 is 161423491.

It can be written as a sum of positive squares in 4 ways, for example, as 40564161 + 153760000 = 6369^2 + 12400^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194324161 - 2¹⁵ = 194291393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194324167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35826 + ... + 40891.

It is an arithmetic number, because the mean of its divisors is an integer number (25892325).

Almost surely, 2^194324161 is an apocalyptic number.

It is an amenable number.

194324161 is a deficient number, since it is larger than the sum of its proper divisors (12814439).

194324161 is a wasteful number, since it uses less digits than its factorization.

194324161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76883.

The product of its digits is 5184, while the sum is 31.

The square root of 194324161 is about 13940.0201219367. The cubic root of 194324161 is about 579.2182899473.

The spelling of 194324161 in words is "one hundred ninety-four million, three hundred twenty-four thousand, one hundred sixty-one".