120705775 has 12 divisors (see below), whose sum is σ = 149859952. Its totient is φ = 96445440.

The previous prime is 120705769. The next prime is 120705779. The reversal of 120705775 is 577507021.

It is not a de Polignac number, because 120705775 - 2¹¹ = 120703727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120705775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120705779) 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 in 11 ways as a sum of consecutive naturals, for example, 21679 + ... + 26671.

Almost surely, 2^120705775 is an apocalyptic number.

120705775 is a deficient number, since it is larger than the sum of its proper divisors (29154177).

120705775 is an equidigital number, since it uses as much as digits as its factorization.

120705775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5970 (or 5965 counting only the distinct ones).

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 120705775 is about 10986.6179964537. The cubic root of 120705775 is about 494.2075201600.

The spelling of 120705775 in words is "one hundred twenty million, seven hundred five thousand, seven hundred seventy-five".