2160815 has 4 divisors (see below), whose sum is σ = 2592984. Its totient is φ = 1728648.

The previous prime is 2160797. The next prime is 2160833. The reversal of 2160815 is 5180612.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2160797) and next prime (2160833).

It is a cyclic number.

It is not a de Polignac number, because 2160815 - 2¹² = 2156719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216077 + ... + 216086.

It is an arithmetic number, because the mean of its divisors is an integer number (648246).

2^2160815 is an apocalyptic number.

2160815 is a deficient number, since it is larger than the sum of its proper divisors (432169).

2160815 is an equidigital number, since it uses as much as digits as its factorization.

2160815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432168.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2160815 is about 1469.9710881511. The cubic root of 2160815 is about 129.2823373601.

The spelling of 2160815 in words is "two million, one hundred sixty thousand, eight hundred fifteen".