13486521 has 8 divisors (see below), whose sum is σ = 18235584. Its totient is φ = 8864240.

The previous prime is 13486513. The next prime is 13486547. The reversal of 13486521 is 12568431.

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

It is a cyclic number.

It is not a de Polignac number, because 13486521 - 2³ = 13486513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13486591) 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, 31446 + ... + 31871.

It is an arithmetic number, because the mean of its divisors is an integer number (2279448).

Almost surely, 2^13486521 is an apocalyptic number.

It is an amenable number.

13486521 is a deficient number, since it is larger than the sum of its proper divisors (4749063).

13486521 is an equidigital number, since it uses as much as digits as its factorization.

13486521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63391.

The product of its digits is 5760, while the sum is 30.

The square root of 13486521 is about 3672.3998965254. The cubic root of 13486521 is about 238.0308848181.

The spelling of 13486521 in words is "thirteen million, four hundred eighty-six thousand, five hundred twenty-one".