120842755 has 32 divisors (see below), whose sum is σ = 167650560. Its totient is φ = 82696320.

The previous prime is 120842753. The next prime is 120842779. The reversal of 120842755 is 557248021.

It is a happy number.

It is not a de Polignac number, because 120842755 - 2¹ = 120842753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120842755.

It is not an unprimeable number, because it can be changed into a prime (120842753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205572 + ... + 206158.

It is an arithmetic number, because the mean of its divisors is an integer number (5239080).

Almost surely, 2^120842755 is an apocalyptic number.

120842755 is a deficient number, since it is larger than the sum of its proper divisors (46807805).

120842755 is a wasteful number, since it uses less digits than its factorization.

120842755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 120842755 is about 10992.8501763646. The cubic root of 120842755 is about 494.3943959311.

The spelling of 120842755 in words is "one hundred twenty million, eight hundred forty-two thousand, seven hundred fifty-five".