26101261 has 2 divisors, whose sum is σ = 26101262. Its totient is φ = 26101260.

The previous prime is 26101253. The next prime is 26101267. The reversal of 26101261 is 16210162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25857225 + 244036 = 5085^2 + 494^2 .

It is a cyclic number.

It is not a de Polignac number, because 26101261 - 2³ = 26101253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26101267) 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, 13050630 + 13050631.

It is an arithmetic number, because the mean of its divisors is an integer number (13050631).

Almost surely, 2^26101261 is an apocalyptic number.

It is an amenable number.

26101261 is a deficient number, since it is larger than the sum of its proper divisors (1).

26101261 is an equidigital number, since it uses as much as digits as its factorization.

26101261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 26101261 is about 5108.9393224034. The cubic root of 26101261 is about 296.6337051850.

It can be divided in two parts, 26101 and 261, that added together give a palindrome (26362).

The spelling of 26101261 in words is "twenty-six million, one hundred one thousand, two hundred sixty-one".