3122985 has 32 divisors (see below), whose sum is σ = 5450112. Its totient is φ = 1520640.

The previous prime is 3122983. The next prime is 3122989. The reversal of 3122985 is 5892213.

3122985 = 408² + 409² + ... + 425².

It is a happy number.

It is not a de Polignac number, because 3122985 - 2¹ = 3122983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122983) 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 31 ways as a sum of consecutive naturals, for example, 9270 + ... + 9600.

It is an arithmetic number, because the mean of its divisors is an integer number (170316).

Almost surely, 2^3122985 is an apocalyptic number.

It is an amenable number.

3122985 is a deficient number, since it is larger than the sum of its proper divisors (2327127).

3122985 is a wasteful number, since it uses less digits than its factorization.

3122985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393.

The product of its digits is 4320, while the sum is 30.

The square root of 3122985 is about 1767.1969329987. The cubic root of 3122985 is about 146.1694567103.

The spelling of 3122985 in words is "three million, one hundred twenty-two thousand, nine hundred eighty-five".