2105215 has 8 divisors (see below), whose sum is σ = 2887200. Its totient is φ = 1443552.

The previous prime is 2105209. The next prime is 2105231. The reversal of 2105215 is 5125012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105215 - 2⁵ = 2105183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30040 + ... + 30109.

It is an arithmetic number, because the mean of its divisors is an integer number (360900).

2^2105215 is an apocalyptic number.

2105215 is a deficient number, since it is larger than the sum of its proper divisors (781985).

2105215 is an equidigital number, since it uses as much as digits as its factorization.

2105215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60161.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2105215 is about 1450.9359048559. The cubic root of 2105215 is about 128.1638323698.

The spelling of 2105215 in words is "two million, one hundred five thousand, two hundred fifteen".