2124085 has 4 divisors (see below), whose sum is σ = 2548908. Its totient is φ = 1699264.

The previous prime is 2124049. The next prime is 2124127. The reversal of 2124085 is 5804212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 531441 + 1592644 = 729^2 + 1262^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124085 - 2¹⁵ = 2091317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212404 + ... + 212413.

It is an arithmetic number, because the mean of its divisors is an integer number (637227).

2^2124085 is an apocalyptic number.

It is an amenable number.

2124085 is a deficient number, since it is larger than the sum of its proper divisors (424823).

2124085 is an equidigital number, since it uses as much as digits as its factorization.

2124085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424822.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2124085 is about 1457.4240975090. The cubic root of 2124085 is about 128.5456241571.

Adding to 2124085 its reverse (5804212), we get a palindrome (7928297).

The spelling of 2124085 in words is "two million, one hundred twenty-four thousand, eighty-five".