13261843 has 16 divisors (see below), whose sum is σ = 15586560. Its totient is φ = 11049696.

The previous prime is 13261841. The next prime is 13261847. The reversal of 13261843 is 34816231.

It is not a de Polignac number, because 13261843 - 2¹ = 13261841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13261841) 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 15 ways as a sum of consecutive naturals, for example, 67221 + ... + 67417.

It is an arithmetic number, because the mean of its divisors is an integer number (974160).

Almost surely, 2^13261843 is an apocalyptic number.

13261843 is a deficient number, since it is larger than the sum of its proper divisors (2324717).

13261843 is a wasteful number, since it uses less digits than its factorization.

13261843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its digits is 3456, while the sum is 28.

The square root of 13261843 is about 3641.6813424571. The cubic root of 13261843 is about 236.7016547712.

The spelling of 13261843 in words is "thirteen million, two hundred sixty-one thousand, eight hundred forty-three".