2097215 has 4 divisors (see below), whose sum is σ = 2516664. Its totient is φ = 1677768.

The previous prime is 2097211. The next prime is 2097223. The reversal of 2097215 is 5127902.

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 2097215 - 2² = 2097211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2097211) 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 in 3 ways as a sum of consecutive naturals, for example, 209717 + ... + 209726.

It is an arithmetic number, because the mean of its divisors is an integer number (629166).

2^2097215 is an apocalyptic number.

2097215 is a deficient number, since it is larger than the sum of its proper divisors (419449).

2097215 is an equidigital number, since it uses as much as digits as its factorization.

2097215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419448.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2097215 is about 1448.1764395266. The cubic root of 2097215 is about 128.0012817254.

The spelling of 2097215 in words is "two million, ninety-seven thousand, two hundred fifteen".