2122385 has 8 divisors (see below), whose sum is σ = 2595240. Its totient is φ = 1665664.

The previous prime is 2122381. The next prime is 2122409. The reversal of 2122385 is 5832212.

It can be written as a sum of positive squares in 4 ways, for example, as 506944 + 1615441 = 712^2 + 1271^2 .

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 2122385 - 2² = 2122381 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 1 + 2⁹ + 2¹⁹ + 3¹³ + 8 + 5⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 2122385.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3740 + ... + 4269.

It is an arithmetic number, because the mean of its divisors is an integer number (324405).

2^2122385 is an apocalyptic number.

It is an amenable number.

2122385 is a deficient number, since it is larger than the sum of its proper divisors (472855).

2122385 is an equidigital number, since it uses as much as digits as its factorization.

2122385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8067.

The product of its digits is 960, while the sum is 23.

The square root of 2122385 is about 1456.8407600009. The cubic root of 2122385 is about 128.5113214046.

Adding to 2122385 its reverse (5832212), we get a palindrome (7954597).

The spelling of 2122385 in words is "two million, one hundred twenty-two thousand, three hundred eighty-five".