194505009229 has 2 divisors, whose sum is σ = 194505009230. Its totient is φ = 194505009228.

The previous prime is 194505009203. The next prime is 194505009233. The reversal of 194505009229 is 922900505491.

194505009229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194372529129 + 132480100 = 440877^2 + 11510^2 .

It is a cyclic number.

It is not a de Polignac number, because 194505009229 - 2³⁵ = 160145270861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194505009529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97252504614 + 97252504615.

It is an arithmetic number, because the mean of its divisors is an integer number (97252504615).

Almost surely, 2^194505009229 is an apocalyptic number.

It is an amenable number.

194505009229 is a deficient number, since it is larger than the sum of its proper divisors (1).

194505009229 is an equidigital number, since it uses as much as digits as its factorization.

194505009229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 194505009229 in words is "one hundred ninety-four billion, five hundred five million, nine thousand, two hundred twenty-nine".