14278069 has 4 divisors (see below), whose sum is σ = 15376396. Its totient is φ = 13179744.

The previous prime is 14278057. The next prime is 14278091. The reversal of 14278069 is 96087241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96087241 = 43 ⋅2234587.

It can be written as a sum of positive squares in 2 ways, for example, as 9847044 + 4431025 = 3138^2 + 2105^2 .

It is a cyclic number.

It is not a de Polignac number, because 14278069 - 2¹¹ = 14276021 is a prime.

It is a super-2 number, since 2×14278069² = 407726508737522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14278049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549144 + ... + 549169.

It is an arithmetic number, because the mean of its divisors is an integer number (3844099).

Almost surely, 2^14278069 is an apocalyptic number.

It is an amenable number.

14278069 is a deficient number, since it is larger than the sum of its proper divisors (1098327).

14278069 is a wasteful number, since it uses less digits than its factorization.

14278069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098326.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 14278069 is about 3778.6332185064. The cubic root of 14278069 is about 242.5994575561.

The spelling of 14278069 in words is "fourteen million, two hundred seventy-eight thousand, sixty-nine".