2150216 has 8 divisors (see below), whose sum is σ = 4031670. Its totient is φ = 1075104.

The previous prime is 2150209. The next prime is 2150221. The reversal of 2150216 is 6120512.

It can be written as a sum of positive squares in only one way, i.e., 2114116 + 36100 = 1454^2 + 190^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2150194 and 2150203.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134381 + ... + 134396.

2^2150216 is an apocalyptic number.

It is an amenable number.

2150216 is a deficient number, since it is larger than the sum of its proper divisors (1881454).

2150216 is a wasteful number, since it uses less digits than its factorization.

2150216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268783 (or 268779 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2150216 is about 1466.3614834003. The cubic root of 2150216 is about 129.0706101425.

Adding to 2150216 its reverse (6120512), we get a palindrome (8270728).

The spelling of 2150216 in words is "two million, one hundred fifty thousand, two hundred sixteen".