120478555 has 16 divisors (see below), whose sum is σ = 151142400. Its totient is φ = 92083680.

The previous prime is 120478537. The next prime is 120478571. The reversal of 120478555 is 555874021.

It is a de Polignac number, because none of the positive numbers 2^k-120478555 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7326 + ... + 17164.

It is an arithmetic number, because the mean of its divisors is an integer number (9446400).

Almost surely, 2^120478555 is an apocalyptic number.

120478555 is a deficient number, since it is larger than the sum of its proper divisors (30663845).

120478555 is an equidigital number, since it uses as much as digits as its factorization.

120478555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 120478555 is about 10976.2723636032. The cubic root of 120478555 is about 493.8972219211.

It can be divided in two parts, 12047 and 8555, that added together give a palindrome (20602).

The spelling of 120478555 in words is "one hundred twenty million, four hundred seventy-eight thousand, five hundred fifty-five".