2102159 has 4 divisors (see below), whose sum is σ = 2110416. Its totient is φ = 2093904.

The previous prime is 2102143. The next prime is 2102167. The reversal of 2102159 is 9512012.

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 2102159 - 2⁴ = 2102143 is a prime.

It is a super-2 number, since 2×2102159² = 8838144922562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102459) 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, 3734 + ... + 4259.

It is an arithmetic number, because the mean of its divisors is an integer number (527604).

2^2102159 is an apocalyptic number.

2102159 is a deficient number, since it is larger than the sum of its proper divisors (8257).

2102159 is an equidigital number, since it uses as much as digits as its factorization.

2102159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8256.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2102159 is about 1449.8824090250. The cubic root of 2102159 is about 128.1017867126.

The spelling of 2102159 in words is "two million, one hundred two thousand, one hundred fifty-nine".