2108131 has 4 divisors (see below), whose sum is σ = 2111200. Its totient is φ = 2105064.

The previous prime is 2108123. The next prime is 2108137. The reversal of 2108131 is 1318012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2108131 - 2³ = 2108123 is a prime.

It is a super-2 number, since 2×2108131² = 8888432626322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2108137) 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, 25 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (527800).

2^2108131 is an apocalyptic number.

2108131 is a deficient number, since it is larger than the sum of its proper divisors (3069).

2108131 is a wasteful number, since it uses less digits than its factorization.

2108131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 2108131 is about 1451.9404257751. The cubic root of 2108131 is about 128.2229796643. Note that the first 3 decimals are identical.

It can be divided in two parts, 21081 and 31, that added together give a palindrome (21112).

The spelling of 2108131 in words is "two million, one hundred eight thousand, one hundred thirty-one".