3122305 has 16 divisors (see below), whose sum is σ = 4015440. Its totient is φ = 2322432.

The previous prime is 3122299. The next prime is 3122309. The reversal of 3122305 is 5032213.

It can be written as a sum of positive squares in 8 ways, for example, as 10609 + 3111696 = 103^2 + 1764^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122305 - 2²¹ = 1025153 is a prime.

3122305 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3122309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9097 + ... + 9433.

It is an arithmetic number, because the mean of its divisors is an integer number (250965).

Almost surely, 2^3122305 is an apocalyptic number.

It is an amenable number.

3122305 is a deficient number, since it is larger than the sum of its proper divisors (893135).

3122305 is a wasteful number, since it uses less digits than its factorization.

3122305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 3122305 is about 1767.0045274419. The cubic root of 3122305 is about 146.1588469416.

Subtracting from 3122305 its sum of digits (16), we obtain a square (3122289 = 1767²).

Adding to 3122305 its reverse (5032213), we get a palindrome (8154518).

The spelling of 3122305 in words is "three million, one hundred twenty-two thousand, three hundred five".