194744113 has 4 divisors (see below), whose sum is σ = 194828020. Its totient is φ = 194660208.

The previous prime is 194744111. The next prime is 194744149. The reversal of 194744113 is 311447491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311447491 = 17189 ⋅18119.

It can be written as a sum of positive squares in 2 ways, for example, as 18173169 + 176570944 = 4263^2 + 13288^2 .

It is a cyclic number.

It is not a de Polignac number, because 194744113 - 2¹ = 194744111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194744111) 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, 38370 + ... + 43147.

It is an arithmetic number, because the mean of its divisors is an integer number (48707005).

Almost surely, 2^194744113 is an apocalyptic number.

It is an amenable number.

194744113 is a deficient number, since it is larger than the sum of its proper divisors (83907).

194744113 is an equidigital number, since it uses as much as digits as its factorization.

194744113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83906.

The product of its digits is 12096, while the sum is 34.

The square root of 194744113 is about 13955.0748116948. The cubic root of 194744113 is about 579.6352373548.

The spelling of 194744113 in words is "one hundred ninety-four million, seven hundred forty-four thousand, one hundred thirteen".