2686131 has 18 divisors (see below), whose sum is σ = 4514172. Its totient is φ = 1534680.

The previous prime is 2686111. The next prime is 2686133. The reversal of 2686131 is 1316862.

It is not a de Polignac number, because 2686131 - 2¹¹ = 2684083 is a prime.

It is a super-2 number, since 2×2686131² = 14430599498322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2686095 and 2686104.

It is not an unprimeable number, because it can be changed into a prime (2686133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2605 + ... + 3486.

2^2686131 is an apocalyptic number.

2686131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2686131 is a deficient number, since it is larger than the sum of its proper divisors (1828041).

2686131 is a wasteful number, since it uses less digits than its factorization.

2686131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111 (or 6101 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2686131 is about 1638.9420368030. The cubic root of 2686131 is about 139.0088326599.

The spelling of 2686131 in words is "two million, six hundred eighty-six thousand, one hundred thirty-one".