13480521 has 4 divisors (see below), whose sum is σ = 17974032. Its totient is φ = 8987012.

The previous prime is 13480517. The next prime is 13480529. The reversal of 13480521 is 12508431.

13480521 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13480521 - 2² = 13480517 is a prime.

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 13480491 and 13480500.

It is not an unprimeable number, because it can be changed into a prime (13480529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2246751 + ... + 2246756.

It is an arithmetic number, because the mean of its divisors is an integer number (4493508).

Almost surely, 2^13480521 is an apocalyptic number.

It is an amenable number.

13480521 is a deficient number, since it is larger than the sum of its proper divisors (4493511).

13480521 is an equidigital number, since it uses as much as digits as its factorization.

13480521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493510.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 13480521 is about 3671.5829011477. The cubic root of 13480521 is about 237.9955805031.

Adding to 13480521 its reverse (12508431), we get a palindrome (25988952).

The spelling of 13480521 in words is "thirteen million, four hundred eighty thousand, five hundred twenty-one".