26135321 has 2 divisors, whose sum is σ = 26135322. Its totient is φ = 26135320.

The previous prime is 26135309. The next prime is 26135339. The reversal of 26135321 is 12353162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22429696 + 3705625 = 4736^2 + 1925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26135321 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26135371) 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, 13067660 + 13067661.

It is an arithmetic number, because the mean of its divisors is an integer number (13067661).

Almost surely, 2^26135321 is an apocalyptic number.

It is an amenable number.

26135321 is a deficient number, since it is larger than the sum of its proper divisors (1).

26135321 is an equidigital number, since it uses as much as digits as its factorization.

26135321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 26135321 is about 5112.2716085905. The cubic root of 26135321 is about 296.7626766359.

Adding to 26135321 its reverse (12353162), we get a palindrome (38488483).

The spelling of 26135321 in words is "twenty-six million, one hundred thirty-five thousand, three hundred twenty-one".