13487271 has 16 divisors (see below), whose sum is σ = 20620800. Its totient is φ = 7681248.

The previous prime is 13487267. The next prime is 13487293. The reversal of 13487271 is 17278431.

It is a happy number.

It is not a de Polignac number, because 13487271 - 2² = 13487267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13489271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6645 + ... + 8433.

It is an arithmetic number, because the mean of its divisors is an integer number (1288800).

Almost surely, 2^13487271 is an apocalyptic number.

13487271 is a deficient number, since it is larger than the sum of its proper divisors (7133529).

13487271 is a wasteful number, since it uses less digits than its factorization.

13487271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158.

The product of its digits is 9408, while the sum is 33.

The square root of 13487271 is about 3672.5020081683. The cubic root of 13487271 is about 238.0352971212.

The spelling of 13487271 in words is "thirteen million, four hundred eighty-seven thousand, two hundred seventy-one".