13306261 has 4 divisors (see below), whose sum is σ = 13435552. Its totient is φ = 13176972.

The previous prime is 13306253. The next prime is 13306277. The reversal of 13306261 is 16260331.

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: 16260331 = 283 ⋅57457.

It is a cyclic number.

It is not a de Polignac number, because 13306261 - 2³ = 13306253 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 (13306361) 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 in 3 ways as a sum of consecutive naturals, for example, 64491 + ... + 64696.

It is an arithmetic number, because the mean of its divisors is an integer number (3358888).

Almost surely, 2^13306261 is an apocalyptic number.

It is an amenable number.

13306261 is a deficient number, since it is larger than the sum of its proper divisors (129291).

13306261 is a wasteful number, since it uses less digits than its factorization.

13306261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129290.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13306261 is about 3647.7748011630. The cubic root of 13306261 is about 236.9656225544.

Adding to 13306261 its reverse (16260331), we get a palindrome (29566592).

The spelling of 13306261 in words is "thirteen million, three hundred six thousand, two hundred sixty-one".