3122005 has 4 divisors (see below), whose sum is σ = 3746412. Its totient is φ = 2497600.

The previous prime is 3122003. The next prime is 3122017. The reversal of 3122005 is 5002213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5002213 = 1553 ⋅3221.

It can be written as a sum of positive squares in 2 ways, for example, as 1028196 + 2093809 = 1014^2 + 1447^2 .

It is not a de Polignac number, because 3122005 - 2¹ = 3122003 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 (3122003) 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, 312196 + ... + 312205.

It is an arithmetic number, because the mean of its divisors is an integer number (936603).

Almost surely, 2^3122005 is an apocalyptic number.

It is an amenable number.

3122005 is a deficient number, since it is larger than the sum of its proper divisors (624407).

3122005 is an equidigital number, since it uses as much as digits as its factorization.

3122005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624406.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 3122005 is about 1766.9196359767. The cubic root of 3122005 is about 146.1541656716.

Adding to 3122005 its reverse (5002213), we get a palindrome (8124218).

The spelling of 3122005 in words is "three million, one hundred twenty-two thousand, five".