120550605 has 32 divisors (see below), whose sum is σ = 221626368. Its totient is φ = 54811200.

The previous prime is 120550601. The next prime is 120550607. The reversal of 120550605 is 506055021.

It is not a de Polignac number, because 120550605 - 2² = 120550601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120550601) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 17050 + ... + 23060.

It is an arithmetic number, because the mean of its divisors is an integer number (6925824).

Almost surely, 2^120550605 is an apocalyptic number.

120550605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120550605 is a deficient number, since it is larger than the sum of its proper divisors (101075763).

120550605 is a wasteful number, since it uses less digits than its factorization.

120550605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 120550605 is about 10979.5539526886. The cubic root of 120550605 is about 493.9956577063.

It can be divided in two parts, 120 and 550605, that added together give a triangular number (550725 = T₁₀₄₉).

The spelling of 120550605 in words is "one hundred twenty million, five hundred fifty thousand, six hundred five".