131657271 has 8 divisors (see below), whose sum is σ = 179625600. Its totient is φ = 85730232.

The previous prime is 131657263. The next prime is 131657287. The reversal of 131657271 is 172756131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131657271 - 2³ = 131657263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131656271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510171 + ... + 510428.

It is an arithmetic number, because the mean of its divisors is an integer number (22453200).

Almost surely, 2^131657271 is an apocalyptic number.

131657271 is a deficient number, since it is larger than the sum of its proper divisors (47968329).

131657271 is a wasteful number, since it uses less digits than its factorization.

131657271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020645.

The product of its digits is 8820, while the sum is 33.

The square root of 131657271 is about 11474.2002335675. The cubic root of 131657271 is about 508.7232848631.

The spelling of 131657271 in words is "one hundred thirty-one million, six hundred fifty-seven thousand, two hundred seventy-one".