194429047 has 2 divisors, whose sum is σ = 194429048. Its totient is φ = 194429046.

The previous prime is 194429041. The next prime is 194429063. The reversal of 194429047 is 740924491.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194429047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194429041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97214523 + 97214524.

It is an arithmetic number, because the mean of its divisors is an integer number (97214524).

Almost surely, 2^194429047 is an apocalyptic number.

194429047 is a deficient number, since it is larger than the sum of its proper divisors (1).

194429047 is an equidigital number, since it uses as much as digits as its factorization.

194429047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 194429047 is about 13943.7816606543. The cubic root of 194429047 is about 579.3224817649.

The spelling of 194429047 in words is "one hundred ninety-four million, four hundred twenty-nine thousand, forty-seven".