13278542 has 8 divisors (see below), whose sum is σ = 19960176. Its totient is φ = 6625152.

The previous prime is 13278497. The next prime is 13278563. The reversal of 13278542 is 24587231.

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

It is a junction number, because it is equal to n+sod(n) for n = 13278499 and 13278508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5843 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (2495022).

Almost surely, 2^13278542 is an apocalyptic number.

13278542 is a deficient number, since it is larger than the sum of its proper divisors (6681634).

13278542 is a wasteful number, since it uses less digits than its factorization.

13278542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14122.

The product of its digits is 13440, while the sum is 32.

The square root of 13278542 is about 3643.9733808029. The cubic root of 13278542 is about 236.8009628149.

The spelling of 13278542 in words is "thirteen million, two hundred seventy-eight thousand, five hundred forty-two".