14197409 has 2 divisors, whose sum is σ = 14197410. Its totient is φ = 14197408.

The previous prime is 14197361. The next prime is 14197441. The reversal of 14197409 is 90479141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13140625 + 1056784 = 3625^2 + 1028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14197409 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14197489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7098704 + 7098705.

It is an arithmetic number, because the mean of its divisors is an integer number (7098705).

Almost surely, 2^14197409 is an apocalyptic number.

It is an amenable number.

14197409 is a deficient number, since it is larger than the sum of its proper divisors (1).

14197409 is an equidigital number, since it uses as much as digits as its factorization.

14197409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 14197409 is about 3767.9449305955. The cubic root of 14197409 is about 242.1417617602.

The spelling of 14197409 in words is "fourteen million, one hundred ninety-seven thousand, four hundred nine".