131087171 has 2 divisors, whose sum is σ = 131087172. Its totient is φ = 131087170.

The previous prime is 131087123. The next prime is 131087207. The reversal of 131087171 is 171780131.

It is a strong prime.

It is an emirp because it is prime and its reverse (171780131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131087171 - 2⁶ = 131087107 is a prime.

It is not a weakly prime, because it can be changed into another prime (131087101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65543585 + 65543586.

It is an arithmetic number, because the mean of its divisors is an integer number (65543586).

Almost surely, 2^131087171 is an apocalyptic number.

131087171 is a deficient number, since it is larger than the sum of its proper divisors (1).

131087171 is an equidigital number, since it uses as much as digits as its factorization.

131087171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 29.

The square root of 131087171 is about 11449.3305917857. The cubic root of 131087171 is about 507.9879342310.

The spelling of 131087171 in words is "one hundred thirty-one million, eighty-seven thousand, one hundred seventy-one".