120005173 has 2 divisors, whose sum is σ = 120005174. Its totient is φ = 120005172.

The previous prime is 120005167. The next prime is 120005201. The reversal of 120005173 is 371500021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118766404 + 1238769 = 10898^2 + 1113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120005173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120005173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120005113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60002586 + 60002587.

It is an arithmetic number, because the mean of its divisors is an integer number (60002587).

Almost surely, 2^120005173 is an apocalyptic number.

It is an amenable number.

120005173 is a deficient number, since it is larger than the sum of its proper divisors (1).

120005173 is an equidigital number, since it uses as much as digits as its factorization.

120005173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 120005173 is about 10954.6872616246. The cubic root of 120005173 is about 493.2495023837.

Adding to 120005173 its reverse (371500021), we get a palindrome (491505194).

The spelling of 120005173 in words is "one hundred twenty million, five thousand, one hundred seventy-three".