120605506 has 16 divisors (see below), whose sum is σ = 207071424. Its totient is φ = 51608304.

The previous prime is 120605501. The next prime is 120605609. The reversal of 120605506 is 605506021.

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, 3256 + ... + 15868.

It is an arithmetic number, because the mean of its divisors is an integer number (12941964).

Almost surely, 2^120605506 is an apocalyptic number.

120605506 is a deficient number, since it is larger than the sum of its proper divisors (86465918).

120605506 is a wasteful number, since it uses less digits than its factorization.

120605506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13305.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 120605506 is about 10982.0538152023. The cubic root of 120605506 is about 494.0706379453.

The spelling of 120605506 in words is "one hundred twenty million, six hundred five thousand, five hundred six".