14129309 has 2 divisors, whose sum is σ = 14129310. Its totient is φ = 14129308.

The previous prime is 14129303. The next prime is 14129317. The reversal of 14129309 is 90392141.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9302500 + 4826809 = 3050^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 14129309 - 2⁸ = 14129053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14129303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7064654 + 7064655.

It is an arithmetic number, because the mean of its divisors is an integer number (7064655).

Almost surely, 2^14129309 is an apocalyptic number.

It is an amenable number.

14129309 is a deficient number, since it is larger than the sum of its proper divisors (1).

14129309 is an equidigital number, since it uses as much as digits as its factorization.

14129309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 14129309 is about 3758.8973117126. The cubic root of 14129309 is about 241.7539846709.

The spelling of 14129309 in words is "fourteen million, one hundred twenty-nine thousand, three hundred nine".