120517489 has 2 divisors, whose sum is σ = 120517490. Its totient is φ = 120517488.

The previous prime is 120517487. The next prime is 120517549. The reversal of 120517489 is 984715021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67519089 + 52998400 = 8217^2 + 7280^2 .

It is a cyclic number.

It is not a de Polignac number, because 120517489 - 2¹ = 120517487 is a prime.

Together with 120517487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120517483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60258744 + 60258745.

It is an arithmetic number, because the mean of its divisors is an integer number (60258745).

Almost surely, 2^120517489 is an apocalyptic number.

It is an amenable number.

120517489 is a deficient number, since it is larger than the sum of its proper divisors (1).

120517489 is an equidigital number, since it uses as much as digits as its factorization.

120517489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 120517489 is about 10978.0457732695. The cubic root of 120517489 is about 493.9504190051.

The spelling of 120517489 in words is "one hundred twenty million, five hundred seventeen thousand, four hundred eighty-nine".