13561411 has 2 divisors, whose sum is σ = 13561412. Its totient is φ = 13561410.

The previous prime is 13561409. The next prime is 13561417. The reversal of 13561411 is 11416531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13561411 - 2¹ = 13561409 is a prime.

Together with 13561409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13561417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6780705 + 6780706.

It is an arithmetic number, because the mean of its divisors is an integer number (6780706).

Almost surely, 2^13561411 is an apocalyptic number.

13561411 is a deficient number, since it is larger than the sum of its proper divisors (1).

13561411 is an equidigital number, since it uses as much as digits as its factorization.

13561411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 22.

The square root of 13561411 is about 3682.5821104220. The cubic root of 13561411 is about 238.4706631344.

Adding to 13561411 its reverse (11416531), we get a palindrome (24977942).

The spelling of 13561411 in words is "thirteen million, five hundred sixty-one thousand, four hundred eleven".