13261611 has 8 divisors (see below), whose sum is σ = 19289664. Its totient is φ = 8037320.

The previous prime is 13261579. The next prime is 13261621. The reversal of 13261611 is 11616231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13261611 - 2⁵ = 13261579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13261621) 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 7 ways as a sum of consecutive naturals, for example, 200901 + ... + 200966.

It is an arithmetic number, because the mean of its divisors is an integer number (2411208).

Almost surely, 2^13261611 is an apocalyptic number.

13261611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13261611 is a deficient number, since it is larger than the sum of its proper divisors (6028053).

13261611 is a wasteful number, since it uses less digits than its factorization.

13261611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401881.

The product of its digits is 216, while the sum is 21.

The square root of 13261611 is about 3641.6494888992. The cubic root of 13261611 is about 236.7002744929.

Adding to 13261611 its reverse (11616231), we get a palindrome (24877842).

The spelling of 13261611 in words is "thirteen million, two hundred sixty-one thousand, six hundred eleven".