120342985 has 16 divisors (see below), whose sum is σ = 165484800. Its totient is φ = 82299456.

The previous prime is 120342977. The next prime is 120342997. The reversal of 120342985 is 589243021.

It is a cyclic number.

It is not a de Polignac number, because 120342985 - 2³ = 120342977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120342985.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 9196 + ... + 18034.

It is an arithmetic number, because the mean of its divisors is an integer number (10342800).

Almost surely, 2^120342985 is an apocalyptic number.

It is an amenable number.

120342985 is a deficient number, since it is larger than the sum of its proper divisors (45141815).

120342985 is an equidigital number, since it uses as much as digits as its factorization.

120342985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 120342985 is about 10970.0950314936. The cubic root of 120342985 is about 493.7118977167.

The spelling of 120342985 in words is "one hundred twenty million, three hundred forty-two thousand, nine hundred eighty-five".