194090049 has 12 divisors (see below), whose sum is σ = 287929876. Its totient is φ = 125896032.

The previous prime is 194090041. The next prime is 194090053. The reversal of 194090049 is 940090491.

It can be written as a sum of positive squares in 2 ways, for example, as 184280625 + 9809424 = 13575^2 + 3132^2 .

It is not a de Polignac number, because 194090049 - 2³ = 194090041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194089995 and 194090022.

It is not an unprimeable number, because it can be changed into a prime (194090041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291094 + ... + 291759.

Almost surely, 2^194090049 is an apocalyptic number.

It is an amenable number.

194090049 is a deficient number, since it is larger than the sum of its proper divisors (93839827).

194090049 is a wasteful number, since it uses less digits than its factorization.

194090049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582896 (or 582893 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 194090049 is about 13931.6204728668. The cubic root of 194090049 is about 578.9855920959.

The spelling of 194090049 in words is "one hundred ninety-four million, ninety thousand, forty-nine".