120651 has 8 divisors (see below), whose sum is σ = 162624. Its totient is φ = 79560.

The previous prime is 120647. The next prime is 120661. The reversal of 120651 is 156021.

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

It is not a de Polignac number, because 120651 - 2² = 120647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120651.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 120651.

It is not an unprimeable number, because it can be changed into a prime (120641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240 + ... + 546.

It is an arithmetic number, because the mean of its divisors is an integer number (20328).

2¹²⁰⁶⁵¹ is an apocalyptic number.

120651 is a deficient number, since it is larger than the sum of its proper divisors (41973).

120651 is a wasteful number, since it uses less digits than its factorization.

120651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 120651 is about 347.3485281385. The cubic root of 120651 is about 49.4132753473.

Adding to 120651 its reverse (156021), we get a palindrome (276672).

The spelling of 120651 in words is "one hundred twenty thousand, six hundred fifty-one".