2168131 has 8 divisors (see below), whose sum is σ = 2500704. Its totient is φ = 1841280.

The previous prime is 2168107. The next prime is 2168143. The reversal of 2168131 is 1318612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2168131 - 2¹⁹ = 1643843 is a prime.

It is a super-2 number, since 2×2168131² = 9401584066322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2168731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580 + ... + 2161.

It is an arithmetic number, because the mean of its divisors is an integer number (312588).

2^2168131 is an apocalyptic number.

2168131 is a deficient number, since it is larger than the sum of its proper divisors (332573).

2168131 is a wasteful number, since it uses less digits than its factorization.

2168131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861.

The product of its digits is 288, while the sum is 22.

The square root of 2168131 is about 1472.4574696744. The cubic root of 2168131 is about 129.4280793036.

It can be divided in two parts, 21681 and 31, that added together give a palindrome (21712).

The spelling of 2168131 in words is "two million, one hundred sixty-eight thousand, one hundred thirty-one".