13256001 has 16 divisors (see below), whose sum is σ = 21424320. Its totient is φ = 8033760.

The previous prime is 13255999. The next prime is 13256029. The reversal of 13256001 is 10065231.

13256001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13256001 - 2¹ = 13255999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13256071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22020 + ... + 22613.

It is an arithmetic number, because the mean of its divisors is an integer number (1339020).

Almost surely, 2^13256001 is an apocalyptic number.

13256001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13256001 is a deficient number, since it is larger than the sum of its proper divisors (8168319).

13256001 is a wasteful number, since it uses less digits than its factorization.

13256001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44653 (or 44647 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13256001 is about 3640.8791520730. The cubic root of 13256001 is about 236.6668930325. Note that the first 3 decimals are identical.

The spelling of 13256001 in words is "thirteen million, two hundred fifty-six thousand, one".