13260921 has 8 divisors (see below), whose sum is σ = 17715744. Its totient is φ = 8823360.

The previous prime is 13260913. The next prime is 13260979. The reversal of 13260921 is 12906231.

13260921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13260921 - 2³ = 13260913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13260891 and 13260900.

It is not an unprimeable number, because it can be changed into a prime (13260421) 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, 2400 + ... + 5681.

It is an arithmetic number, because the mean of its divisors is an integer number (2214468).

Almost surely, 2^13260921 is an apocalyptic number.

It is an amenable number.

13260921 is a deficient number, since it is larger than the sum of its proper divisors (4454823).

13260921 is an equidigital number, since it uses as much as digits as its factorization.

13260921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8631.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 13260921 is about 3641.5547503779. The cubic root of 13260921 is about 236.6961692596.

The spelling of 13260921 in words is "thirteen million, two hundred sixty thousand, nine hundred twenty-one".