120287 has 4 divisors (see below), whose sum is σ = 123576. Its totient is φ = 117000.

The previous prime is 120283. The next prime is 120293. The reversal of 120287 is 782021.

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 120287 - 2² = 120283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 120287.

It is not an unprimeable number, because it can be changed into a prime (120283) 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 3 ways as a sum of consecutive naturals, for example, 1589 + ... + 1662.

It is an arithmetic number, because the mean of its divisors is an integer number (30894).

2¹²⁰²⁸⁷ is an apocalyptic number.

120287 is a deficient number, since it is larger than the sum of its proper divisors (3289).

120287 is an equidigital number, since it uses as much as digits as its factorization.

120287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 120287 is about 346.8241629414. The cubic root of 120287 is about 49.3635325609.

The spelling of 120287 in words is "one hundred twenty thousand, two hundred eighty-seven".