120285491 has 4 divisors (see below), whose sum is σ = 123082872. Its totient is φ = 117488112.

The previous prime is 120285481. The next prime is 120285493. The reversal of 120285491 is 194582021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120285491 - 2¹⁰ = 120284467 is a prime.

It is a super-2 number, since 2×120285491² = 28937198690222162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120285493) 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, 1398626 + ... + 1398711.

It is an arithmetic number, because the mean of its divisors is an integer number (30770718).

Almost surely, 2^120285491 is an apocalyptic number.

120285491 is a deficient number, since it is larger than the sum of its proper divisors (2797381).

120285491 is an equidigital number, since it uses as much as digits as its factorization.

120285491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797380.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 120285491 is about 10967.4742306513. The cubic root of 120285491 is about 493.6332613828.

The spelling of 120285491 in words is "one hundred twenty million, two hundred eighty-five thousand, four hundred ninety-one".