14239009 has 2 divisors, whose sum is σ = 14239010. Its totient is φ = 14239008.

The previous prime is 14239007. The next prime is 14239031. The reversal of 14239009 is 90093241.

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., 14227984 + 11025 = 3772^2 + 105^2 .

It is a cyclic number.

It is not a de Polignac number, because 14239009 - 2¹ = 14239007 is a prime.

Together with 14239007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (14239007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7119504 + 7119505.

It is an arithmetic number, because the mean of its divisors is an integer number (7119505).

Almost surely, 2^14239009 is an apocalyptic number.

It is an amenable number.

14239009 is a deficient number, since it is larger than the sum of its proper divisors (1).

14239009 is an equidigital number, since it uses as much as digits as its factorization.

14239009 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 28.

The square root of 14239009 is about 3773.4611433007. The cubic root of 14239009 is about 242.3780319801.

The spelling of 14239009 in words is "fourteen million, two hundred thirty-nine thousand, nine".