13711261 has 4 divisors (see below), whose sum is σ = 14045724. Its totient is φ = 13376800.

The previous prime is 13711249. The next prime is 13711267. The reversal of 13711261 is 16211731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 11431161 = 1510^2 + 3381^2 .

It is a cyclic number.

It is not a de Polignac number, because 13711261 - 2⁷ = 13711133 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13711267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167170 + ... + 167251.

It is an arithmetic number, because the mean of its divisors is an integer number (3511431).

Almost surely, 2^13711261 is an apocalyptic number.

It is an amenable number.

13711261 is a deficient number, since it is larger than the sum of its proper divisors (334463).

13711261 is an equidigital number, since it uses as much as digits as its factorization.

13711261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334462.

The product of its digits is 252, while the sum is 22.

The square root of 13711261 is about 3702.8719934667. The cubic root of 13711261 is about 239.3457935766.

Adding to 13711261 its reverse (16211731), we get a palindrome (29922992).

The spelling of 13711261 in words is "thirteen million, seven hundred eleven thousand, two hundred sixty-one".