2104015 has 4 divisors (see below), whose sum is σ = 2524824. Its totient is φ = 1683208.

The previous prime is 2104013. The next prime is 2104019. The reversal of 2104015 is 5104012.

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 2104015 - 2¹ = 2104013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2103986 and 2104004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104013) 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, 210397 + ... + 210406.

It is an arithmetic number, because the mean of its divisors is an integer number (631206).

2^2104015 is an apocalyptic number.

2104015 is a deficient number, since it is larger than the sum of its proper divisors (420809).

2104015 is an equidigital number, since it uses as much as digits as its factorization.

2104015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420808.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2104015 is about 1450.5223197180. The cubic root of 2104015 is about 128.1394760562.

Adding to 2104015 its reverse (5104012), we get a palindrome (7208027).

It can be divided in two parts, 210 and 4015, that added together give a square (4225 = 65²).

The spelling of 2104015 in words is "two million, one hundred four thousand, fifteen".