26138351 has 2 divisors, whose sum is σ = 26138352. Its totient is φ = 26138350.

The previous prime is 26138347. The next prime is 26138353. The reversal of 26138351 is 15383162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26138351 - 2² = 26138347 is a prime.

Together with 26138353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26138353) 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, 13069175 + 13069176.

It is an arithmetic number, because the mean of its divisors is an integer number (13069176).

Almost surely, 2^26138351 is an apocalyptic number.

26138351 is a deficient number, since it is larger than the sum of its proper divisors (1).

26138351 is an equidigital number, since it uses as much as digits as its factorization.

26138351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 26138351 is about 5112.5679457588. The cubic root of 26138351 is about 296.7741445923.

The spelling of 26138351 in words is "twenty-six million, one hundred thirty-eight thousand, three hundred fifty-one".