13378539 has 8 divisors (see below), whose sum is σ = 17856000. Its totient is φ = 8910056.

The previous prime is 13378523. The next prime is 13378543. The reversal of 13378539 is 93587331.

13378539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13378539 - 2⁴ = 13378523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13378497 and 13378506.

It is not an unprimeable number, because it can be changed into a prime (13378549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2962 + ... + 5960.

It is an arithmetic number, because the mean of its divisors is an integer number (2232000).

Almost surely, 2^13378539 is an apocalyptic number.

13378539 is a deficient number, since it is larger than the sum of its proper divisors (4477461).

13378539 is a wasteful number, since it uses less digits than its factorization.

13378539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489.

The product of its digits is 68040, while the sum is 39.

The square root of 13378539 is about 3657.6685196994. The cubic root of 13378539 is about 237.3939042279.

The spelling of 13378539 in words is "thirteen million, three hundred seventy-eight thousand, five hundred thirty-nine".