194427029 has 2 divisors, whose sum is σ = 194427030. Its totient is φ = 194427028.

The previous prime is 194427017. The next prime is 194427059. The reversal of 194427029 is 920724491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187744804 + 6682225 = 13702^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 194427029 - 2²⁰ = 193378453 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 194426983 and 194427001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194427059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97213514 + 97213515.

It is an arithmetic number, because the mean of its divisors is an integer number (97213515).

Almost surely, 2^194427029 is an apocalyptic number.

It is an amenable number.

194427029 is a deficient number, since it is larger than the sum of its proper divisors (1).

194427029 is an equidigital number, since it uses as much as digits as its factorization.

194427029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 194427029 is about 13943.7092984614. The cubic root of 194427029 is about 579.3204774745.

The spelling of 194427029 in words is "one hundred ninety-four million, four hundred twenty-seven thousand, twenty-nine".