2122985 has 4 divisors (see below), whose sum is σ = 2547588. Its totient is φ = 1698384.

The previous prime is 2122979. The next prime is 2123027. The reversal of 2122985 is 5892212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 414736 + 1708249 = 644^2 + 1307^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122985 - 2⁶ = 2122921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212294 + ... + 212303.

It is an arithmetic number, because the mean of its divisors is an integer number (636897).

2^2122985 is an apocalyptic number.

It is an amenable number.

2122985 is a deficient number, since it is larger than the sum of its proper divisors (424603).

2122985 is an equidigital number, since it uses as much as digits as its factorization.

2122985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424602.

The product of its digits is 2880, while the sum is 29.

The square root of 2122985 is about 1457.0466704948. The cubic root of 2122985 is about 128.5234303493.

The spelling of 2122985 in words is "two million, one hundred twenty-two thousand, nine hundred eighty-five".