13476521 has 2 divisors, whose sum is σ = 13476522. Its totient is φ = 13476520.

The previous prime is 13476517. The next prime is 13476523. The reversal of 13476521 is 12567431.

13476521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6948496 + 6528025 = 2636^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 13476521 - 2² = 13476517 is a prime.

Together with 13476523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13476523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6738260 + 6738261.

It is an arithmetic number, because the mean of its divisors is an integer number (6738261).

Almost surely, 2^13476521 is an apocalyptic number.

It is an amenable number.

13476521 is a deficient number, since it is larger than the sum of its proper divisors (1).

13476521 is an equidigital number, since it uses as much as digits as its factorization.

13476521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 13476521 is about 3671.0381365494. The cubic root of 13476521 is about 237.9720384729.

The spelling of 13476521 in words is "thirteen million, four hundred seventy-six thousand, five hundred twenty-one".