13278243 has 8 divisors (see below), whose sum is σ = 19313856. Its totient is φ = 8047400.

The previous prime is 13278229. The next prime is 13278247. The reversal of 13278243 is 34287231.

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 13278243 - 2⁸ = 13277987 is a prime.

It is a super-3 number, since 3×13278243³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13278243.

It is not an unprimeable number, because it can be changed into a prime (13278247) 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, 201153 + ... + 201218.

It is an arithmetic number, because the mean of its divisors is an integer number (2414232).

Almost surely, 2^13278243 is an apocalyptic number.

13278243 is a deficient number, since it is larger than the sum of its proper divisors (6035613).

13278243 is a wasteful number, since it uses less digits than its factorization.

13278243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402385.

The product of its digits is 8064, while the sum is 30.

The square root of 13278243 is about 3643.9323539276. The cubic root of 13278243 is about 236.7991854104.

The spelling of 13278243 in words is "thirteen million, two hundred seventy-eight thousand, two hundred forty-three".