2016215 has 4 divisors (see below), whose sum is σ = 2419464. Its totient is φ = 1612968.

The previous prime is 2016211. The next prime is 2016239. The reversal of 2016215 is 5126102.

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

It is a cyclic number.

It is not a de Polignac number, because 2016215 - 2² = 2016211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2016193 and 2016202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201617 + ... + 201626.

It is an arithmetic number, because the mean of its divisors is an integer number (604866).

2^2016215 is an apocalyptic number.

2016215 is a deficient number, since it is larger than the sum of its proper divisors (403249).

2016215 is an equidigital number, since it uses as much as digits as its factorization.

2016215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403248.

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

The square root of 2016215 is about 1419.9348576607. The cubic root of 2016215 is about 126.3316825915.

The spelling of 2016215 in words is "two million, sixteen thousand, two hundred fifteen".