13026261 has 4 divisors (see below), whose sum is σ = 17368352. Its totient is φ = 8684172.

The previous prime is 13026259. The next prime is 13026271. The reversal of 13026261 is 16262031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16262031 = 3 ⋅5420677.

It is not a de Polignac number, because 13026261 - 2¹ = 13026259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13026271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2171041 + ... + 2171046.

It is an arithmetic number, because the mean of its divisors is an integer number (4342088).

Almost surely, 2^13026261 is an apocalyptic number.

It is an amenable number.

13026261 is a deficient number, since it is larger than the sum of its proper divisors (4342091).

13026261 is an equidigital number, since it uses as much as digits as its factorization.

13026261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342090.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13026261 is about 3609.1911836310. The cubic root of 13026261 is about 235.2916915105.

Adding to 13026261 its reverse (16262031), we get a palindrome (29288292).

The spelling of 13026261 in words is "thirteen million, twenty-six thousand, two hundred sixty-one".