120917 has 2 divisors, whose sum is σ = 120918. Its totient is φ = 120916.

The previous prime is 120907. The next prime is 120919. The reversal of 120917 is 719021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106276 + 14641 = 326^2 + 121^2 .

It is a cyclic number.

It is not a de Polignac number, because 120917 - 2⁸ = 120661 is a prime.

Together with 120919, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 120917.

It is not a weakly prime, because it can be changed into another prime (120919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60458 + 60459.

It is an arithmetic number, because the mean of its divisors is an integer number (60459).

2¹²⁰⁹¹⁷ is an apocalyptic number.

It is an amenable number.

120917 is a deficient number, since it is larger than the sum of its proper divisors (1).

120917 is an equidigital number, since it uses as much as digits as its factorization.

120917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 120917 is about 347.7312180406. The cubic root of 120917 is about 49.4495626099.

Adding to 120917 its reverse (719021), we get a palindrome (839938).

The spelling of 120917 in words is "one hundred twenty thousand, nine hundred seventeen".