194938047 has 12 divisors (see below), whose sum is σ = 282914424. Its totient is φ = 129341520.

The previous prime is 194938039. The next prime is 194938061. The reversal of 194938047 is 740839491.

It is not a de Polignac number, because 194938047 - 2³ = 194938039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194937993 and 194938011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194938027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49428 + ... + 53225.

It is an arithmetic number, because the mean of its divisors is an integer number (23576202).

Almost surely, 2^194938047 is an apocalyptic number.

194938047 is a deficient number, since it is larger than the sum of its proper divisors (87976377).

194938047 is a wasteful number, since it uses less digits than its factorization.

194938047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102870 (or 102867 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 194938047 is about 13962.0215943108. The cubic root of 194938047 is about 579.8275815281.

The spelling of 194938047 in words is "one hundred ninety-four million, nine hundred thirty-eight thousand, forty-seven".