4122385 has 4 divisors (see below), whose sum is σ = 4946868. Its totient is φ = 3297904.

The previous prime is 4122343. The next prime is 4122401. The reversal of 4122385 is 5832214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5832214 = 2 ⋅2916107.

It can be written as a sum of positive squares in 2 ways, for example, as 707281 + 3415104 = 841^2 + 1848^2 .

It is a cyclic number.

It is not a de Polignac number, because 4122385 - 2¹³ = 4114193 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁸ + 1 + 2 + 2²¹ + 3⁸ + 8 + 5⁹ .

It is a Duffinian number.

It is a plaindrome in base 15.

It is an unprimeable number.

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, 412234 + ... + 412243.

It is an arithmetic number, because the mean of its divisors is an integer number (1236717).

Almost surely, 2^4122385 is an apocalyptic number.

It is an amenable number.

4122385 is a deficient number, since it is larger than the sum of its proper divisors (824483).

4122385 is an equidigital number, since it uses as much as digits as its factorization.

4122385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824482.

The product of its digits is 1920, while the sum is 25.

The square root of 4122385 is about 2030.3657306013. The cubic root of 4122385 is about 160.3428196298.

Adding to 4122385 its reverse (5832214), we get a palindrome (9954599).

The spelling of 4122385 in words is "four million, one hundred twenty-two thousand, three hundred eighty-five".