26136493 has 2 divisors, whose sum is σ = 26136494. Its totient is φ = 26136492.

The previous prime is 26136491. The next prime is 26136529. The reversal of 26136493 is 39463162.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14040009 + 12096484 = 3747^2 + 3478^2 .

It is a cyclic number.

It is not a de Polignac number, because 26136493 - 2¹ = 26136491 is a prime.

Together with 26136491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26136491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13068246 + 13068247.

It is an arithmetic number, because the mean of its divisors is an integer number (13068247).

Almost surely, 2^26136493 is an apocalyptic number.

It is an amenable number.

26136493 is a deficient number, since it is larger than the sum of its proper divisors (1).

26136493 is an equidigital number, since it uses as much as digits as its factorization.

26136493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The square root of 26136493 is about 5112.3862334530. The cubic root of 26136493 is about 296.7671125314.

The spelling of 26136493 in words is "twenty-six million, one hundred thirty-six thousand, four hundred ninety-three".