13145417 has 2 divisors, whose sum is σ = 13145418. Its totient is φ = 13145416.

The previous prime is 13145413. The next prime is 13145449. The reversal of 13145417 is 71454131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10883401 + 2262016 = 3299^2 + 1504^2 .

It is a cyclic number.

It is not a de Polignac number, because 13145417 - 2² = 13145413 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13145411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572708 + 6572709.

It is an arithmetic number, because the mean of its divisors is an integer number (6572709).

Almost surely, 2^13145417 is an apocalyptic number.

It is an amenable number.

13145417 is a deficient number, since it is larger than the sum of its proper divisors (1).

13145417 is an equidigital number, since it uses as much as digits as its factorization.

13145417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 13145417 is about 3625.6609052695. The cubic root of 13145417 is about 236.0069482298.

Adding to 13145417 its reverse (71454131), we get a palindrome (84599548).

The spelling of 13145417 in words is "thirteen million, one hundred forty-five thousand, four hundred seventeen".