13256542 has 8 divisors (see below), whose sum is σ = 21414456. Its totient is φ = 6118392.

The previous prime is 13256527. The next prime is 13256563. The reversal of 13256542 is 24565231.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13256542.

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, 254908 + ... + 254959.

It is an arithmetic number, because the mean of its divisors is an integer number (2676807).

Almost surely, 2^13256542 is an apocalyptic number.

13256542 is a deficient number, since it is larger than the sum of its proper divisors (8157914).

13256542 is a wasteful number, since it uses less digits than its factorization.

13256542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509882.

The product of its digits is 7200, while the sum is 28.

The square root of 13256542 is about 3640.9534465576. The cubic root of 13256542 is about 236.6701125818.

The spelling of 13256542 in words is "thirteen million, two hundred fifty-six thousand, five hundred forty-two".