120845317 has 2 divisors, whose sum is σ = 120845318. Its totient is φ = 120845316.

The previous prime is 120845303. The next prime is 120845323. The reversal of 120845317 is 713548021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96550276 + 24295041 = 9826^2 + 4929^2 .

It is a cyclic number.

It is not a de Polignac number, because 120845317 - 2⁷ = 120845189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120845017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60422658 + 60422659.

It is an arithmetic number, because the mean of its divisors is an integer number (60422659).

Almost surely, 2^120845317 is an apocalyptic number.

It is an amenable number.

120845317 is a deficient number, since it is larger than the sum of its proper divisors (1).

120845317 is an equidigital number, since it uses as much as digits as its factorization.

120845317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 120845317 is about 10992.9667060353. The cubic root of 120845317 is about 494.3978898090.

The spelling of 120845317 in words is "one hundred twenty million, eight hundred forty-five thousand, three hundred seventeen".