13561417 has 2 divisors, whose sum is σ = 13561418. Its totient is φ = 13561416.

The previous prime is 13561411. The next prime is 13561433. The reversal of 13561417 is 71416531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13461561 + 99856 = 3669^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 13561417 - 2³ = 13561409 is a prime.

It is not a weakly prime, because it can be changed into another prime (13561411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6780708 + 6780709.

It is an arithmetic number, because the mean of its divisors is an integer number (6780709).

Almost surely, 2^13561417 is an apocalyptic number.

It is an amenable number.

13561417 is a deficient number, since it is larger than the sum of its proper divisors (1).

13561417 is an equidigital number, since it uses as much as digits as its factorization.

13561417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 13561417 is about 3682.5829250677. The cubic root of 13561417 is about 238.4706983034.

Adding to 13561417 its reverse (71416531), we get a palindrome (84977948).

The spelling of 13561417 in words is "thirteen million, five hundred sixty-one thousand, four hundred seventeen".