174138120917 has 2 divisors, whose sum is σ = 174138120918. Its totient is φ = 174138120916.

The previous prime is 174138120829. The next prime is 174138120983. The reversal of 174138120917 is 719021831471.

174138120917 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., 174027471556 + 110649361 = 417166^2 + 10519^2 .

It is a cyclic number.

It is not a de Polignac number, because 174138120917 - 2¹⁰ = 174138119893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (174138126917) 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, 87069060458 + 87069060459.

It is an arithmetic number, because the mean of its divisors is an integer number (87069060459).

Almost surely, 2^174138120917 is an apocalyptic number.

It is an amenable number.

174138120917 is a deficient number, since it is larger than the sum of its proper divisors (1).

174138120917 is an equidigital number, since it uses as much as digits as its factorization.

174138120917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 174138120917 in words is "one hundred seventy-four billion, one hundred thirty-eight million, one hundred twenty thousand, nine hundred seventeen".