120106647 has 6 divisors (see below), whose sum is σ = 173487392. Its totient is φ = 80071092.

The previous prime is 120106643. The next prime is 120106663. The reversal of 120106647 is 746601021.

120106647 is a `hidden beast` number, since 1 + 2 + 0 + 10 + 6 + 647 = 666.

It is not a de Polignac number, because 120106647 - 2² = 120106643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120106647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120106643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6672583 + ... + 6672600.

Almost surely, 2^120106647 is an apocalyptic number.

120106647 is a deficient number, since it is larger than the sum of its proper divisors (53380745).

120106647 is a wasteful number, since it uses less digits than its factorization.

120106647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13345189 (or 13345186 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 120106647 is about 10959.3178163607. The cubic root of 120106647 is about 493.3884905560.

Adding to 120106647 its reverse (746601021), we get a palindrome (866707668).

The spelling of 120106647 in words is "one hundred twenty million, one hundred six thousand, six hundred forty-seven".