26134681 has 2 divisors, whose sum is σ = 26134682. Its totient is φ = 26134680.

The previous prime is 26134663. The next prime is 26134697. The reversal of 26134681 is 18643162.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16679056 + 9455625 = 4084^2 + 3075^2 .

It is a cyclic number.

It is not a de Polignac number, because 26134681 - 2⁷ = 26134553 is a prime.

It is a super-2 number, since 2×26134681² = 1366043101943522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26134621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13067340 + 13067341.

It is an arithmetic number, because the mean of its divisors is an integer number (13067341).

Almost surely, 2^26134681 is an apocalyptic number.

It is an amenable number.

26134681 is a deficient number, since it is larger than the sum of its proper divisors (1).

26134681 is an equidigital number, since it uses as much as digits as its factorization.

26134681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 26134681 is about 5112.2090137239. The cubic root of 26134681 is about 296.7602542479.

The spelling of 26134681 in words is "twenty-six million, one hundred thirty-four thousand, six hundred eighty-one".