13256733 has 8 divisors (see below), whose sum is σ = 20200768. Its totient is φ = 7575264.

The previous prime is 13256723. The next prime is 13256759. The reversal of 13256733 is 33765231.

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

It is not a de Polignac number, because 13256733 - 2⁵ = 13256701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13256733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13256723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315616 + ... + 315657.

It is an arithmetic number, because the mean of its divisors is an integer number (2525096).

Almost surely, 2^13256733 is an apocalyptic number.

It is an amenable number.

13256733 is a deficient number, since it is larger than the sum of its proper divisors (6944035).

13256733 is an equidigital number, since it uses as much as digits as its factorization.

13256733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631283.

The product of its digits is 11340, while the sum is 30.

The square root of 13256733 is about 3640.9796758565. The cubic root of 13256733 is about 236.6712492225.

It can be divided in two parts, 132 and 56733, that added together give a palindrome (56865).

The spelling of 13256733 in words is "thirteen million, two hundred fifty-six thousand, seven hundred thirty-three".