26427131 has 2 divisors, whose sum is σ = 26427132. Its totient is φ = 26427130.

The previous prime is 26427127. The next prime is 26427133. The reversal of 26427131 is 13172462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26427131 - 2² = 26427127 is a prime.

It is a super-2 number, since 2×26427131² = 1396786505782322, which contains 22 as substring.

Together with 26427133, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26427131.

It is not a weakly prime, because it can be changed into another prime (26427133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13213565 + 13213566.

It is an arithmetic number, because the mean of its divisors is an integer number (13213566).

Almost surely, 2^26427131 is an apocalyptic number.

26427131 is a deficient number, since it is larger than the sum of its proper divisors (1).

26427131 is an equidigital number, since it uses as much as digits as its factorization.

26427131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 26427131 is about 5140.7325353494. The cubic root of 26427131 is about 297.8630776470.

Adding to 26427131 its reverse (13172462), we get a palindrome (39599593).

The spelling of 26427131 in words is "twenty-six million, four hundred twenty-seven thousand, one hundred thirty-one".