13201871 has 4 divisors (see below), whose sum is σ = 13213200. Its totient is φ = 13190544.

The previous prime is 13201861. The next prime is 13201879. The reversal of 13201871 is 17810231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17810231 = 61 ⋅291971.

It is a cyclic number.

It is not a de Polignac number, because 13201871 - 2¹⁸ = 12939727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201879) 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, 3686 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (3303300).

Almost surely, 2^13201871 is an apocalyptic number.

13201871 is a deficient number, since it is larger than the sum of its proper divisors (11329).

13201871 is a wasteful number, since it uses less digits than its factorization.

13201871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 13201871 is about 3633.4379036940. The cubic root of 13201871 is about 236.3443157105.

The spelling of 13201871 in words is "thirteen million, two hundred one thousand, eight hundred seventy-one".