120029665 has 24 divisors (see below), whose sum is σ = 172093032. Its totient is φ = 80075520.

The previous prime is 120029647. The next prime is 120029687. The reversal of 120029665 is 566920021.

It can be written as a sum of positive squares in 4 ways, for example, as 74494161 + 45535504 = 8631^2 + 6748^2 .

It is not a de Polignac number, because 120029665 - 2⁵ = 120029633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2445 + ... + 15685.

It is an arithmetic number, because the mean of its divisors is an integer number (7170543).

Almost surely, 2^120029665 is an apocalyptic number.

It is an amenable number.

120029665 is a deficient number, since it is larger than the sum of its proper divisors (52063367).

120029665 is a wasteful number, since it uses less digits than its factorization.

120029665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13297 (or 13290 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 120029665 is about 10955.8050822384. The cubic root of 120029665 is about 493.2830560624.

Adding to 120029665 its reverse (566920021), we get a palindrome (686949686).

The spelling of 120029665 in words is "one hundred twenty million, twenty-nine thousand, six hundred sixty-five".