26181349 has 2 divisors, whose sum is σ = 26181350. Its totient is φ = 26181348.

The previous prime is 26181313. The next prime is 26181371. The reversal of 26181349 is 94318162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14668900 + 11512449 = 3830^2 + 3393^2 .

It is a cyclic number.

It is not a de Polignac number, because 26181349 - 2¹³ = 26173157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26181149) 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, 13090674 + 13090675.

It is an arithmetic number, because the mean of its divisors is an integer number (13090675).

Almost surely, 2^26181349 is an apocalyptic number.

It is an amenable number.

26181349 is a deficient number, since it is larger than the sum of its proper divisors (1).

26181349 is an equidigital number, since it uses as much as digits as its factorization.

26181349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 26181349 is about 5116.7713452919. The cubic root of 26181349 is about 296.9367881586.

The spelling of 26181349 in words is "twenty-six million, one hundred eighty-one thousand, three hundred forty-nine".