131171271 has 16 divisors (see below), whose sum is σ = 218051328. Its totient is φ = 68140800.

The previous prime is 131171251. The next prime is 131171329. The reversal of 131171271 is 172171131.

It is a de Polignac number, because none of the positive numbers 2^k-131171271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131171251) 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, 283690 + ... + 284151.

It is an arithmetic number, because the mean of its divisors is an integer number (13628208).

Almost surely, 2^131171271 is an apocalyptic number.

131171271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131171271 is a deficient number, since it is larger than the sum of its proper divisors (86880057).

131171271 is a wasteful number, since it uses less digits than its factorization.

131171271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567862.

The product of its digits is 294, while the sum is 24.

The square root of 131171271 is about 11453.0027067141. The cubic root of 131171271 is about 508.0965455518.

The spelling of 131171271 in words is "one hundred thirty-one million, one hundred seventy-one thousand, two hundred seventy-one".