120789559 has 4 divisors (see below), whose sum is σ = 131770440. Its totient is φ = 109808680.

The previous prime is 120789551. The next prime is 120789563. The reversal of 120789559 is 955987021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120789559 - 2³ = 120789551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120789551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5490424 + ... + 5490445.

It is an arithmetic number, because the mean of its divisors is an integer number (32942610).

Almost surely, 2^120789559 is an apocalyptic number.

120789559 is a deficient number, since it is larger than the sum of its proper divisors (10980881).

120789559 is a wasteful number, since it uses less digits than its factorization.

120789559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10980880.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 120789559 is about 10990.4303373435. The cubic root of 120789559 is about 494.3218397557.

The spelling of 120789559 in words is "one hundred twenty million, seven hundred eighty-nine thousand, five hundred fifty-nine".