26109131 has 2 divisors, whose sum is σ = 26109132. Its totient is φ = 26109130.

The previous prime is 26109101. The next prime is 26109133. The reversal of 26109131 is 13190162.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26109131 - 2⁶ = 26109067 is a prime.

It is a super-2 number, since 2×26109131² = 1363373443150322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 26109133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26109097 and 26109106.

It is not a weakly prime, because it can be changed into another prime (26109133) 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 as a sum of consecutive naturals, namely, 13054565 + 13054566.

It is an arithmetic number, because the mean of its divisors is an integer number (13054566).

Almost surely, 2^26109131 is an apocalyptic number.

26109131 is a deficient number, since it is larger than the sum of its proper divisors (1).

26109131 is an equidigital number, since it uses as much as digits as its factorization.

26109131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 26109131 is about 5109.7094829354. The cubic root of 26109131 is about 296.6635156562.

Adding to 26109131 its reverse (13190162), we get a palindrome (39299293).

The spelling of 26109131 in words is "twenty-six million, one hundred nine thousand, one hundred thirty-one".