120755689 has 2 divisors, whose sum is σ = 120755690. Its totient is φ = 120755688.

The previous prime is 120755671. The next prime is 120755699. The reversal of 120755689 is 986557021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100801600 + 19954089 = 10040^2 + 4467^2 .

It is a cyclic number.

It is not a de Polignac number, because 120755689 - 2⁷ = 120755561 is a prime.

It is not a weakly prime, because it can be changed into another prime (120755629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60377844 + 60377845.

It is an arithmetic number, because the mean of its divisors is an integer number (60377845).

Almost surely, 2^120755689 is an apocalyptic number.

It is an amenable number.

120755689 is a deficient number, since it is larger than the sum of its proper divisors (1).

120755689 is an equidigital number, since it uses as much as digits as its factorization.

120755689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 120755689 is about 10988.8893433322. The cubic root of 120755689 is about 494.2756319929.

The spelling of 120755689 in words is "one hundred twenty million, seven hundred fifty-five thousand, six hundred eighty-nine".