14146409 has 2 divisors, whose sum is σ = 14146410. Its totient is φ = 14146408.

The previous prime is 14146399. The next prime is 14146411. The reversal of 14146409 is 90464141.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13249600 + 896809 = 3640^2 + 947^2 .

It is an emirp because it is prime and its reverse (90464141) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14146409 is a prime.

It is a super-5 number, since 5×14146409⁵ (a number of 37 digits) contains 55555 as substring.

Together with 14146411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14146439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7073204 + 7073205.

It is an arithmetic number, because the mean of its divisors is an integer number (7073205).

Almost surely, 2^14146409 is an apocalyptic number.

It is an amenable number.

14146409 is a deficient number, since it is larger than the sum of its proper divisors (1).

14146409 is an equidigital number, since it uses as much as digits as its factorization.

14146409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 14146409 is about 3761.1712271578. The cubic root of 14146409 is about 241.8514729613.

The spelling of 14146409 in words is "fourteen million, one hundred forty-six thousand, four hundred nine".