13705256 has 16 divisors (see below), whose sum is σ = 25736640. Its totient is φ = 6842160.

The previous prime is 13705253. The next prime is 13705267. The reversal of 13705256 is 65250731.

It is not an unprimeable number, because it can be changed into a prime (13705253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9665 + ... + 10991.

It is an arithmetic number, because the mean of its divisors is an integer number (1608540).

Almost surely, 2^13705256 is an apocalyptic number.

It is an amenable number.

13705256 is a deficient number, since it is larger than the sum of its proper divisors (12031384).

13705256 is a wasteful number, since it uses less digits than its factorization.

13705256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624 (or 2620 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 13705256 is about 3702.0610475788. The cubic root of 13705256 is about 239.3108470859.

Adding to 13705256 its reverse (65250731), we get a palindrome (78955987).

The spelling of 13705256 in words is "thirteen million, seven hundred five thousand, two hundred fifty-six".