26131 has 4 divisors (see below), whose sum is σ = 29872. Its totient is φ = 22392.

The previous prime is 26119. The next prime is 26141. The reversal of 26131 is 13162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13162 = 2 ⋅6581.

It is a cyclic number.

It is not a de Polignac number, because 26131 - 2⁵ = 26099 is a prime.

It is a super-2 number, since 2×26131² = 1365658322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (26111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1860 + ... + 1873.

It is an arithmetic number, because the mean of its divisors is an integer number (7468).

2²⁶¹³¹ is an apocalyptic number.

26131 is a deficient number, since it is larger than the sum of its proper divisors (3741).

26131 is an equidigital number, since it uses as much as digits as its factorization.

26131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740.

The product of its digits is 36, while the sum is 13.

The square root of 26131 is about 161.6508583336. The cubic root of 26131 is about 29.6746320964.

Adding to 26131 its reverse (13162), we get a palindrome (39293).

It can be divided in two parts, 261 and 31, that added together give a palindrome (292).

The spelling of 26131 in words is "twenty-six thousand, one hundred thirty-one".