120687705 has 48 divisors (see below), whose sum is σ = 222418560. Its totient is φ = 62088768.

The previous prime is 120687683. The next prime is 120687737. The reversal of 120687705 is 507786021.

It is not a de Polignac number, because 120687705 - 2¹¹ = 120685657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120687705.

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 47 ways as a sum of consecutive naturals, for example, 113004 + ... + 114066.

It is an arithmetic number, because the mean of its divisors is an integer number (4633720).

Almost surely, 2^120687705 is an apocalyptic number.

120687705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120687705 is a deficient number, since it is larger than the sum of its proper divisors (101730855).

120687705 is a wasteful number, since it uses less digits than its factorization.

120687705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 120687705 is about 10985.7956015939. The cubic root of 120687705 is about 494.1828575025.

The spelling of 120687705 in words is "one hundred twenty million, six hundred eighty-seven thousand, seven hundred five".