131188271 has 2 divisors, whose sum is σ = 131188272. Its totient is φ = 131188270.

The previous prime is 131188261. The next prime is 131188279. The reversal of 131188271 is 172881131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131188271 - 2⁶ = 131188207 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131188279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65594135 + 65594136.

It is an arithmetic number, because the mean of its divisors is an integer number (65594136).

Almost surely, 2^131188271 is an apocalyptic number.

131188271 is a deficient number, since it is larger than the sum of its proper divisors (1).

131188271 is an equidigital number, since it uses as much as digits as its factorization.

131188271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 32.

The square root of 131188271 is about 11453.7448461191. The cubic root of 131188271 is about 508.1184946368.

The spelling of 131188271 in words is "one hundred thirty-one million, one hundred eighty-eight thousand, two hundred seventy-one".