14278349 has 2 divisors, whose sum is σ = 14278350. Its totient is φ = 14278348.

The previous prime is 14278309. The next prime is 14278357. The reversal of 14278349 is 94387241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9517225 + 4761124 = 3085^2 + 2182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14278349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14278309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7139174 + 7139175.

It is an arithmetic number, because the mean of its divisors is an integer number (7139175).

Almost surely, 2^14278349 is an apocalyptic number.

It is an amenable number.

14278349 is a deficient number, since it is larger than the sum of its proper divisors (1).

14278349 is an equidigital number, since it uses as much as digits as its factorization.

14278349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 14278349 is about 3778.6702687586. The cubic root of 14278349 is about 242.6010433776.

The spelling of 14278349 in words is "fourteen million, two hundred seventy-eight thousand, three hundred forty-nine".