120642 has 8 divisors (see below), whose sum is σ = 241296. Its totient is φ = 40212.

The previous prime is 120641. The next prime is 120647. The reversal of 120642 is 246021.

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

120642 is an admirable number.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10048 + ... + 10059.

It is an arithmetic number, because the mean of its divisors is an integer number (30162).

2¹²⁰⁶⁴² is an apocalyptic number.

120642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120642 is a wasteful number, since it uses less digits than its factorization.

120642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20112.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 120642 is about 347.3355726095. The cubic root of 120642 is about 49.4120466504.

Adding to 120642 its reverse (246021), we get a palindrome (366663).

The spelling of 120642 in words is "one hundred twenty thousand, six hundred forty-two".