120816705 has 32 divisors (see below), whose sum is σ = 206748288. Its totient is φ = 60032000.

The previous prime is 120816667. The next prime is 120816727. The reversal of 120816705 is 507618021.

It is not a de Polignac number, because 120816705 - 2¹⁴ = 120800321 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23410 + ... + 28100.

It is an arithmetic number, because the mean of its divisors is an integer number (6460884).

Almost surely, 2^120816705 is an apocalyptic number.

120816705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120816705 is a deficient number, since it is larger than the sum of its proper divisors (85931583).

120816705 is a wasteful number, since it uses less digits than its factorization.

120816705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 120816705 is about 10991.6652514530. The cubic root of 120816705 is about 494.3588679438.

The spelling of 120816705 in words is "one hundred twenty million, eight hundred sixteen thousand, seven hundred five".