2159015 has 4 divisors (see below), whose sum is σ = 2590824. Its totient is φ = 1727208.

The previous prime is 2158999. The next prime is 2159023. The reversal of 2159015 is 5109512.

2159015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2159015 - 2⁴ = 2158999 is a prime.

It is a super-2 number, since 2×2159015² = 9322691540450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215897 + ... + 215906.

It is an arithmetic number, because the mean of its divisors is an integer number (647706).

2^2159015 is an apocalyptic number.

2159015 is a deficient number, since it is larger than the sum of its proper divisors (431809).

2159015 is an equidigital number, since it uses as much as digits as its factorization.

2159015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431808.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 2159015 is about 1469.3587036527. The cubic root of 2159015 is about 129.2464291720.

The spelling of 2159015 in words is "two million, one hundred fifty-nine thousand, fifteen".