26121349 has 2 divisors, whose sum is σ = 26121350. Its totient is φ = 26121348.

The previous prime is 26121341. The next prime is 26121383. The reversal of 26121349 is 94312162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14493249 + 11628100 = 3807^2 + 3410^2 .

It is a cyclic number.

It is not a de Polignac number, because 26121349 - 2³ = 26121341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26121341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13060674 + 13060675.

It is an arithmetic number, because the mean of its divisors is an integer number (13060675).

Almost surely, 2^26121349 is an apocalyptic number.

It is an amenable number.

26121349 is a deficient number, since it is larger than the sum of its proper divisors (1).

26121349 is an equidigital number, since it uses as much as digits as its factorization.

26121349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 26121349 is about 5110.9049100918. The cubic root of 26121349 is about 296.7097838830.

The spelling of 26121349 in words is "twenty-six million, one hundred twenty-one thousand, three hundred forty-nine".