120520189 has 2 divisors, whose sum is σ = 120520190. Its totient is φ = 120520188.

The previous prime is 120520121. The next prime is 120520223. The reversal of 120520189 is 981025021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85414564 + 35105625 = 9242^2 + 5925^2 .

It is a cyclic number.

It is not a de Polignac number, because 120520189 - 2⁹ = 120519677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120520889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60260094 + 60260095.

It is an arithmetic number, because the mean of its divisors is an integer number (60260095).

Almost surely, 2^120520189 is an apocalyptic number.

It is an amenable number.

120520189 is a deficient number, since it is larger than the sum of its proper divisors (1).

120520189 is an equidigital number, since it uses as much as digits as its factorization.

120520189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 120520189 is about 10978.1687452872. The cubic root of 120520189 is about 493.9541076984.

The spelling of 120520189 in words is "one hundred twenty million, five hundred twenty thousand, one hundred eighty-nine".