14278945 has 8 divisors (see below), whose sum is σ = 17156736. Its totient is φ = 11408496.

The previous prime is 14278921. The next prime is 14278949. The reversal of 14278945 is 54987241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14278945 - 2²³ = 5890337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14278898 and 14278907.

It is not an unprimeable number, because it can be changed into a prime (14278949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4344 + ... + 6886.

It is an arithmetic number, because the mean of its divisors is an integer number (2144592).

Almost surely, 2^14278945 is an apocalyptic number.

It is an amenable number.

14278945 is a deficient number, since it is larger than the sum of its proper divisors (2877791).

14278945 is a wasteful number, since it uses less digits than its factorization.

14278945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671.

The product of its digits is 80640, while the sum is 40.

The square root of 14278945 is about 3778.7491316572. The cubic root of 14278945 is about 242.6044188428.

The spelling of 14278945 in words is "fourteen million, two hundred seventy-eight thousand, nine hundred forty-five".