120908665 has 8 divisors (see below), whose sum is σ = 146150280. Its totient is φ = 96020352.

The previous prime is 120908663. The next prime is 120908729. The reversal of 120908665 is 566809021.

It can be written as a sum of positive squares in 4 ways, for example, as 150544 + 120758121 = 388^2 + 10989^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 120908665 - 2¹ = 120908663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120908663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87570 + ... + 88939.

It is an arithmetic number, because the mean of its divisors is an integer number (18268785).

Almost surely, 2^120908665 is an apocalyptic number.

It is an amenable number.

120908665 is a deficient number, since it is larger than the sum of its proper divisors (25241615).

120908665 is a wasteful number, since it uses less digits than its factorization.

120908665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176651.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 120908665 is about 10995.8476253539. The cubic root of 120908665 is about 494.4842637160.

The spelling of 120908665 in words is "one hundred twenty million, nine hundred eight thousand, six hundred sixty-five".