13201571 has 4 divisors (see below), whose sum is σ = 13978152. Its totient is φ = 12424992.

The previous prime is 13201541. The next prime is 13201577. The reversal of 13201571 is 17510231.

13201571 is digitally balanced in base 3, because in such base 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 an emirpimes, since its reverse is a distinct semiprime: 17510231 = 331 ⋅52901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13201571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13201577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388265 + ... + 388298.

It is an arithmetic number, because the mean of its divisors is an integer number (3494538).

Almost surely, 2^13201571 is an apocalyptic number.

13201571 is a deficient number, since it is larger than the sum of its proper divisors (776581).

13201571 is an equidigital number, since it uses as much as digits as its factorization.

13201571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776580.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 13201571 is about 3633.3966202439. The cubic root of 13201571 is about 236.3425254635.

The spelling of 13201571 in words is "thirteen million, two hundred one thousand, five hundred seventy-one".