13126439 has 8 divisors (see below), whose sum is σ = 13454208. Its totient is φ = 12802680.

The previous prime is 13126429. The next prime is 13126447. The reversal of 13126439 is 93462131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13126439 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13126429) 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, 6254 + ... + 8084.

It is an arithmetic number, because the mean of its divisors is an integer number (1681776).

Almost surely, 2^13126439 is an apocalyptic number.

13126439 is a deficient number, since it is larger than the sum of its proper divisors (327769).

13126439 is a wasteful number, since it uses less digits than its factorization.

13126439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

The product of its digits is 3888, while the sum is 29.

The square root of 13126439 is about 3623.0427819721. The cubic root of 13126439 is about 235.8933193505.

The spelling of 13126439 in words is "thirteen million, one hundred twenty-six thousand, four hundred thirty-nine".