120605505 has 8 divisors (see below), whose sum is σ = 192968832. Its totient is φ = 64322928.

The previous prime is 120605501. The next prime is 120605609. The reversal of 120605505 is 505506021.

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

It is not a de Polignac number, because 120605505 - 2² = 120605501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120605501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4020169 + ... + 4020198.

It is an arithmetic number, because the mean of its divisors is an integer number (24121104).

Almost surely, 2^120605505 is an apocalyptic number.

120605505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120605505 is a deficient number, since it is larger than the sum of its proper divisors (72363327).

120605505 is an equidigital number, since it uses as much as digits as its factorization.

120605505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040375.

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

The square root of 120605505 is about 10982.0537696735. The cubic root of 120605505 is about 494.0706365798.

The spelling of 120605505 in words is "one hundred twenty million, six hundred five thousand, five hundred five".