120247665 has 8 divisors (see below), whose sum is σ = 192396288. Its totient is φ = 64132080.

The previous prime is 120247663. The next prime is 120247693. The reversal of 120247665 is 566742021.

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

It is not a de Polignac number, because 120247665 - 2¹ = 120247663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120247663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4008241 + ... + 4008270.

It is an arithmetic number, because the mean of its divisors is an integer number (24049536).

Almost surely, 2^120247665 is an apocalyptic number.

120247665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120247665 is a deficient number, since it is larger than the sum of its proper divisors (72148623).

120247665 is an equidigital number, since it uses as much as digits as its factorization.

120247665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016519.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 120247665 is about 10965.7496323781. The cubic root of 120247665 is about 493.5815119180.

Adding to 120247665 its reverse (566742021), we get a palindrome (686989686).

The spelling of 120247665 in words is "one hundred twenty million, two hundred forty-seven thousand, six hundred sixty-five".