2122184 has 8 divisors (see below), whose sum is σ = 3979110. Its totient is φ = 1061088.

The previous prime is 2122181. The next prime is 2122189. The reversal of 2122184 is 4812212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 77284 = 1430^2 + 278^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2122181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132629 + ... + 132644.

2^2122184 is an apocalyptic number.

It is an amenable number.

2122184 is a deficient number, since it is larger than the sum of its proper divisors (1856926).

2122184 is a wasteful number, since it uses less digits than its factorization.

2122184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265279 (or 265275 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 2122184 is about 1456.7717734772. The cubic root of 2122184 is about 128.5072643978.

Adding to 2122184 its reverse (4812212), we get a palindrome (6934396).

The spelling of 2122184 in words is "two million, one hundred twenty-two thousand, one hundred eighty-four".