2104215 has 8 divisors (see below), whose sum is σ = 3366768. Its totient is φ = 1122240.

The previous prime is 2104213. The next prime is 2104217. The reversal of 2104215 is 5124012.

It is an interprime number because it is at equal distance from previous prime (2104213) and next prime (2104217).

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

It is not a de Polignac number, because 2104215 - 2¹ = 2104213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 140281 = 2104215 / (2 + 1 + 0 + 4 + 2 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 2104194 and 2104203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70126 + ... + 70155.

It is an arithmetic number, because the mean of its divisors is an integer number (420846).

2^2104215 is an apocalyptic number.

2104215 is a deficient number, since it is larger than the sum of its proper divisors (1262553).

2104215 is a wasteful number, since it uses less digits than its factorization.

2104215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140289.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2104215 is about 1450.5912587631. The cubic root of 2104215 is about 128.1435360848.

Adding to 2104215 its reverse (5124012), we get a palindrome (7228227).

The spelling of 2104215 in words is "two million, one hundred four thousand, two hundred fifteen".