194144845 has 8 divisors (see below), whose sum is σ = 246678264. Its totient is φ = 146179584.

The previous prime is 194144833. The next prime is 194144849. The reversal of 194144845 is 548441491.

It is a happy number.

194144845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 39664804 + 154480041 = 6298^2 + 12429^2 .

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 194144845 - 2¹¹ = 194142797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194144798 and 194144807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194144849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141944 + ... + 1142113.

It is an arithmetic number, because the mean of its divisors is an integer number (30834783).

Almost surely, 2^194144845 is an apocalyptic number.

It is an amenable number.

194144845 is a deficient number, since it is larger than the sum of its proper divisors (52533419).

194144845 is a wasteful number, since it uses less digits than its factorization.

194144845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284079.

The product of its digits is 92160, while the sum is 40.

The square root of 194144845 is about 13933.5869394783. The cubic root of 194144845 is about 579.0400738677.

The spelling of 194144845 in words is "one hundred ninety-four million, one hundred forty-four thousand, eight hundred forty-five".