120491 has 6 divisors (see below), whose sum is σ = 140220. Its totient is φ = 103236.

The previous prime is 120473. The next prime is 120503. The reversal of 120491 is 194021.

It is a happy number.

It is not a de Polignac number, because 120491 - 2⁶ = 120427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120401) 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 5 ways as a sum of consecutive naturals, for example, 1181 + ... + 1278.

It is an arithmetic number, because the mean of its divisors is an integer number (23370).

2¹²⁰⁴⁹¹ is an apocalyptic number.

120491 is a deficient number, since it is larger than the sum of its proper divisors (19729).

120491 is an equidigital number, since it uses as much as digits as its factorization.

120491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473 (or 2466 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 120491 is about 347.1181355101. The cubic root of 120491 is about 49.3914227269.

The spelling of 120491 in words is "one hundred twenty thousand, four hundred ninety-one".