120013665 has 8 divisors (see below), whose sum is σ = 192021888. Its totient is φ = 64007280.

The previous prime is 120013637. The next prime is 120013667. The reversal of 120013665 is 566310021.

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

It is not a de Polignac number, because 120013665 - 2¹⁵ = 119980897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120013667) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4000441 + ... + 4000470.

It is an arithmetic number, because the mean of its divisors is an integer number (24002736).

Almost surely, 2^120013665 is an apocalyptic number.

120013665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120013665 is a deficient number, since it is larger than the sum of its proper divisors (72008223).

120013665 is an equidigital number, since it uses as much as digits as its factorization.

120013665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000919.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 120013665 is about 10955.0748514102. The cubic root of 120013665 is about 493.2611368155.

Adding to 120013665 its reverse (566310021), we get a palindrome (686323686).

The spelling of 120013665 in words is "one hundred twenty million, thirteen thousand, six hundred sixty-five".