2154216 has 16 divisors (see below), whose sum is σ = 5385600. Its totient is φ = 718064.

The previous prime is 2154209. The next prime is 2154227. The reversal of 2154216 is 6124512.

2154216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2154192 and 2154201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44856 + ... + 44903.

It is an arithmetic number, because the mean of its divisors is an integer number (336600).

2^2154216 is an apocalyptic number.

It is an amenable number.

2154216 is an abundant number, since it is smaller than the sum of its proper divisors (3231384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154216 is a wasteful number, since it uses less digits than its factorization.

2154216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89768 (or 89764 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 2154216 is about 1467.7247698394. The cubic root of 2154216 is about 129.1505963126.

Adding to 2154216 its reverse (6124512), we get a palindrome (8278728).

The spelling of 2154216 in words is "two million, one hundred fifty-four thousand, two hundred sixteen".