2099215 has 12 divisors (see below), whose sum is σ = 2660904. Its totient is φ = 1589616.

The previous prime is 2099213. The next prime is 2099219. The reversal of 2099215 is 5129902.

It is not a de Polignac number, because 2099215 - 2¹ = 2099213 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 (2099213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224 + ... + 2386.

It is an arithmetic number, because the mean of its divisors is an integer number (221742).

2^2099215 is an apocalyptic number.

2099215 is a deficient number, since it is larger than the sum of its proper divisors (561689).

2099215 is a wasteful number, since it uses less digits than its factorization.

2099215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 2099215 is about 1448.8667985705. The cubic root of 2099215 is about 128.0419580872.

It can be divided in two parts, 20 and 99215, that added together give a triangular number (99235 = T₄₄₅).

The spelling of 2099215 in words is "two million, ninety-nine thousand, two hundred fifteen".