13278275 has 24 divisors (see below), whose sum is σ = 17632800. Its totient is φ = 9884160.

The previous prime is 13278263. The next prime is 13278289. The reversal of 13278275 is 57287231.

It is not a de Polignac number, because 13278275 - 2¹⁴ = 13261891 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 66626 + ... + 66824.

It is an arithmetic number, because the mean of its divisors is an integer number (734700).

Almost surely, 2^13278275 is an apocalyptic number.

13278275 is a deficient number, since it is larger than the sum of its proper divisors (4354525).

13278275 is a wasteful number, since it uses less digits than its factorization.

13278275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 378 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 13278275 is about 3643.9367447858. The cubic root of 13278275 is about 236.7993756356.

The spelling of 13278275 in words is "thirteen million, two hundred seventy-eight thousand, two hundred seventy-five".