120661163 has 8 divisors (see below), whose sum is σ = 139841280. Its totient is φ = 101966760.

The previous prime is 120661133. The next prime is 120661193. The reversal of 120661163 is 361166021.

It is an interprime number because it is at equal distance from previous prime (120661133) and next prime (120661193).

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

It is not a de Polignac number, because 120661163 - 2⁸ = 120660907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120661133) 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, 120893 + ... + 121886.

It is an arithmetic number, because the mean of its divisors is an integer number (17480160).

Almost surely, 2^120661163 is an apocalyptic number.

120661163 is a deficient number, since it is larger than the sum of its proper divisors (19180117).

120661163 is an equidigital number, since it uses as much as digits as its factorization.

120661163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242857.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 120661163 is about 10984.5875207037. The cubic root of 120661163 is about 494.1466274572.

The spelling of 120661163 in words is "one hundred twenty million, six hundred sixty-one thousand, one hundred sixty-three".