120240173 has 2 divisors, whose sum is σ = 120240174. Its totient is φ = 120240172.

The previous prime is 120240161. The next prime is 120240179. The reversal of 120240173 is 371042021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120077764 + 162409 = 10958^2 + 403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120240173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120240179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60120086 + 60120087.

It is an arithmetic number, because the mean of its divisors is an integer number (60120087).

Almost surely, 2^120240173 is an apocalyptic number.

It is an amenable number.

120240173 is a deficient number, since it is larger than the sum of its proper divisors (1).

120240173 is an equidigital number, since it uses as much as digits as its factorization.

120240173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 120240173 is about 10965.4080179444. The cubic root of 120240173 is about 493.5712608818.

Adding to 120240173 its reverse (371042021), we get a palindrome (491282194).

The spelling of 120240173 in words is "one hundred twenty million, two hundred forty thousand, one hundred seventy-three".