26138131 has 2 divisors, whose sum is σ = 26138132. Its totient is φ = 26138130.

The previous prime is 26138113. The next prime is 26138149. The reversal of 26138131 is 13183162.

Together with previous prime (26138113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (26138113) and next prime (26138149).

It is a cyclic number.

It is not a de Polignac number, because 26138131 - 2¹¹ = 26136083 is a prime.

It is a super-2 number, since 2×26138131² = 1366403784346322, which contains 22 as substring.

It is a zygodrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 26138096 and 26138105.

It is not a weakly prime, because it can be changed into another prime (26138531) 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, 13069065 + 13069066.

It is an arithmetic number, because the mean of its divisors is an integer number (13069066).

Almost surely, 2^26138131 is an apocalyptic number.

26138131 is a deficient number, since it is larger than the sum of its proper divisors (1).

26138131 is an equidigital number, since it uses as much as digits as its factorization.

26138131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 26138131 is about 5112.5464301070. The cubic root of 26138131 is about 296.7733119652.

The spelling of 26138131 in words is "twenty-six million, one hundred thirty-eight thousand, one hundred thirty-one".