2120287 has 8 divisors (see below), whose sum is σ = 2337104. Its totient is φ = 1911168.

The previous prime is 2120269. The next prime is 2120297. The reversal of 2120287 is 7820212.

2120287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2120287 - 2¹¹ = 2118239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120207) 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, 1338 + ... + 2455.

It is an arithmetic number, because the mean of its divisors is an integer number (292138).

2^2120287 is an apocalyptic number.

2120287 is a deficient number, since it is larger than the sum of its proper divisors (216817).

2120287 is a wasteful number, since it uses less digits than its factorization.

2120287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2120287 is about 1456.1205307254. The cubic root of 2120287 is about 128.4689625110.

Adding to 2120287 its reverse (7820212), we get a palindrome (9940499).

The spelling of 2120287 in words is "two million, one hundred twenty thousand, two hundred eighty-seven".