131693271 has 16 divisors (see below), whose sum is σ = 190457568. Its totient is φ = 80614400.

The previous prime is 131693267. The next prime is 131693273. The reversal of 131693271 is 172396131.

It is a cyclic number.

It is not a de Polignac number, because 131693271 - 2² = 131693267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131693273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29400 + ... + 33581.

It is an arithmetic number, because the mean of its divisors is an integer number (11903598).

Almost surely, 2^131693271 is an apocalyptic number.

131693271 is a deficient number, since it is larger than the sum of its proper divisors (58764297).

131693271 is a wasteful number, since it uses less digits than its factorization.

131693271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63042.

The product of its digits is 6804, while the sum is 33.

The square root of 131693271 is about 11475.7688631307. The cubic root of 131693271 is about 508.7696486001.

The spelling of 131693271 in words is "one hundred thirty-one million, six hundred ninety-three thousand, two hundred seventy-one".