120956559 has 8 divisors (see below), whose sum is σ = 161636400. Its totient is φ = 80457216.

The previous prime is 120956557. The next prime is 120956567. The reversal of 120956559 is 955659021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120956559 - 2¹ = 120956557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120956559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120956551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43552 + ... + 46245.

It is an arithmetic number, because the mean of its divisors is an integer number (20204550).

Almost surely, 2^120956559 is an apocalyptic number.

120956559 is a deficient number, since it is larger than the sum of its proper divisors (40679841).

120956559 is an equidigital number, since it uses as much as digits as its factorization.

120956559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90249.

The product of its (nonzero) digits is 121500, while the sum is 42.

The square root of 120956559 is about 10998.0252318314. The cubic root of 120956559 is about 494.5495463351.

The spelling of 120956559 in words is "one hundred twenty million, nine hundred fifty-six thousand, five hundred fifty-nine".